Cleveland Trust Co. v. Thomas

1 F. Supp. 917, 1932 U.S. Dist. LEXIS 1881
CourtDistrict Court, D. Massachusetts
DecidedNovember 21, 1932
DocketNo. 3532
StatusPublished
Cited by2 cases

This text of 1 F. Supp. 917 (Cleveland Trust Co. v. Thomas) is published on Counsel Stack Legal Research, covering District Court, D. Massachusetts primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Cleveland Trust Co. v. Thomas, 1 F. Supp. 917, 1932 U.S. Dist. LEXIS 1881 (D. Mass. 1932).

Opinion

BREWSTER, District Judge.

This proceeding in equity is brought under R. S. § 4915 (35 USCA § 63) to compel the commissioner of patents to issue letters patent upon the application of one Frank G. Crane, plaintiffs’ assignor, who had applied for a patent covering new and useful improvements in a sanitary napkin or the like.

Statement of Facts.

1. On February 14, 1927, Crane filed an application covering several different inventions, and on May 21, 1927, he filed a divisional application which included eight claims.

2. On June 21, 1927, interference was declared by the Patent Office between claims 6. 7, and 8 of the Crane application and claims 1, 3, and 6 of Reissue Patent No. 16,-603, issued to the defendant Thomas, assignor of the defendant Thomas Products, Inc.

3. Thomas filed his original application March 13, 1925, upon which Letters Patent [918]*918No. 1,564,489 was granted December 8, 1925. On February 17, 1927, he applied for a reissue, which was granted on April 19, 1927. In his affidavit accompanying his petition for a reissue, Thomas asserts that the original patent is inoperative and invalid for the reason that the specifications thereof ‘ were defective and insufficient and that such defect was the inadvertent failure to incorporate therein claims clearly commensurate with the invention as disclosed in the specifications. The drawings, description, specifications, and the five claims of the original patent were incorporated without any change whatsoever in the reissue patent. The only difference between the two patents, the original and the reissue, was the addition of claims 6, 7, and 8 which, in effect, enlarged the protection of the patent with respect to one of the elements, to be referred to hereafter.

4. In the interference proceedings, there were three counts based on claims 1, 3, and 6 of the Thomas patent which were identical in terms with claims 6, 7, and 8 of Crane’s application. It is sufficient for the purposes of illustration to give only the first count.

Count 1. (Claim 1 of the Thomas Reissue No. 16,603) : “In a sanitary napkin, a multiplicity of superposed, thin webs of wood cellulose forming a pad portion which is readily disintegrable after use, and an additional soft, flexible thin sheet of substantially similar material suitably moisture-proofed and laid upon said pad portion without positive attachment thereto, affording no obstruction to the disintegration of the said pad portion, and being itself capable of disposal in the same manner as the said pad portion, whereby a moisture-proofed flexible and non-irritating pad readily disintegrable almost in its entirety, and all capable of similar disposal after use, is provided.”

5. It will be noted that the invention contains three elements: (1) A pad portion; (2) an outer layer of moisture-proofed material constituting moisture-retaining means; (3) an envelope of gauze containing the pad portion and the moisture-retaining means.

The controversy in this ease centers about the second element which is claimed in the three counts in the following language: In the first claim the moisture-proofing means is described as “an additional soft, flexible thin sheet of substantially similar material suitably moisture-proofed and laid upon said pad portion without positive attachment thereto. * * * ”

In the third claim (count 2) it is described as a “thin layer of material similar in character to that of said pad portion suitably moisture proofed and constituting moisture-retaining means at the outer face of the said pad portion intermediate the latter and said gauze envelope. a' * * ”

In the sixth claim (count 3) this element is described as “a soft, highly flexible, thin, moisture-proof sheet constituting moisture-retaining means at the outer face of said pad portion intermediate the latter and said gauze envelope, said moisture-retaining means having substantially the same degree of flexibility and softness as that of said pad portion. * * * ”

6. In disclosing how he constructed the moisture-proofed portion, Thomas illustrated the method which he then considered preferable. I quote from his application (No. 1,564,498):

“I obtain said results preferably by subjecting a sheet of wood cellulose or other eellulosic material similar to the film-like sheets 2 but of a closer texture, less tenuous and heavier to a bath of a special moisture proofing material. In practice said material may be a rubber or rubber-like compound or a high-melting paraffin or wax, said material being of high flexibility when dry, not stiff or harsh, and having a melting point well above body temperatures so as not to be rendered viscous or sticky thereby. * * *

“In forming the absorbent pad embodying my invention and in accordance with the method thereof a multiplicity of film-like strips or webs of the wood cellulose axe superposed or piled in any suitable manner, as by feeding from a roll. The moisture proofing surface is then applied. Since any moisture proofing material must not penetrate the pad to any substantial degree it is undesirable to apply said material either in a spray or other form directly to the superposed webs, the absorptive properties of the latter being so marked that any material suitable for the purpose and so applied will impregnate the webs or penetrate them so far as to make them stiff and not readily separable. Accordingly I preferably provide a sheet or web of wood cellulose or other cellulosie material of appreciably greater substance than said multiplicity of webs and conduct the same through a bath of the moisture proofing material such as above mentioned, drain it of any excess material, and then lay it desirably while still moist, upon the superposed webs.”

7. In practice it was found that, when the moisture-resisting element was obtained by [919]*919dipping the sheet into a rubber-like compound or certain moisture-proofing liquid, which was being used in the manufacture of the completed article, the results were not commercially successful, owing to the fact that, after the article had stood for a long time and the moisture-proofed sheet had become dry, it was then not sufficiently flexible or soft to meet the objects sought to be obtained by the invention. Consequently it was found that, by applying a thin sheet of gutta-percha to a sheet of material substantially similar to that used in the absorbent pad, a moisture-proofed sheet would result which was free from the objections found in sheets moisture-proofed by the earlier method. This application was accomplished by heating and pressing upon a sheet of wood cellulose, or other similar material, a thin sheet of gutta-percha.

8. According to the file wrapper in the matter of Thomas’ original application, it appears that, during the course of the proceedings in the Patent Office, two claims were added by amendment which were broad enough to cover as a moisture-proofing means a layer of inherently moisture-proof material. These claims were canceled, and claims 1, 2, and 3, as originally submitted, were rewritten as they appeared in the patents as finally granted. At the time this was done it was stated that it was done merely to reduce the number of claims “but without in any sense limiting the scope of the protection asked for.”

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1 F. Supp. 917, 1932 U.S. Dist. LEXIS 1881, Counsel Stack Legal Research, https://law.counselstack.com/opinion/cleveland-trust-co-v-thomas-mad-1932.