Simon S. Kahn v. Harvey F. Phipard, Jr.

397 F.2d 995, 55 C.C.P.A. 1284, 158 U.S.P.Q. (BNA) 269, 1968 CCPA LEXIS 289
CourtCourt of Customs and Patent Appeals
DecidedJune 27, 1968
DocketPatent Appeal 7979
StatusPublished
Cited by5 cases

This text of 397 F.2d 995 (Simon S. Kahn v. Harvey F. Phipard, Jr.) is published on Counsel Stack Legal Research, covering Court of Customs and Patent Appeals primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Simon S. Kahn v. Harvey F. Phipard, Jr., 397 F.2d 995, 55 C.C.P.A. 1284, 158 U.S.P.Q. (BNA) 269, 1968 CCPA LEXIS 289 (ccpa 1968).

Opinion

SMITH, Judge.

The Board of Patent Interferences 1 awarded priority of invention to Phipard in Interference No. 93,370 2 and Kahn appeals. No testimony was taken by either party. The board awarded priority to' Phipard as the senior party in view of his effective 1960 filing date.

While several issues are raised on this appeal, the determinative issue is whether Phipard was properly given the benefit of his filing date. An ancillary issue is also raised by Kahn who contends the award of priority is void because it was made by a board which was illegally constituted by reason of its including an acting examiner of interferences. Other issues which were raised by Kahn but which we do not regard as providing a basis for reversal are, broadly stated, that Phipard is estopped to contest priority, that it was improper to fail to set a new motion period after the present counts were substituted in the interference, 3 and that it was error for the examiner to shift the burden of proof.

The invention in issue relates to a self-tapping screw with swaging protuberances on its work-entering end to facilitate the formation of a thread on the work piece. Count 3 of the interference is drawn to the article and count 4 to a process for making that article. The *997 counts are so similar, insofar as the determinative issue is concerned, that we need consider only count 3 in detail.

An understanding of the invention adequate for present purposes can be gleaned from Figs. 1-3 which appear in the drawings of both Phipard applications, 4 when considered with count 3 which is here reproduced with the addition of bracketed numerical references referring to the parts shown in these figures.

Count 3 reads:

3. A self-tapping fastener [screw 15] including:

(a) a shank portion [17], having an enlarged upset head [16] at one end and a tapered work-entering portion [19] terminating in a tip at the other end,

(b) said shank [17] and work-entering portions [19] being provided with a continuous helical rolled thread formation [20] throughout substantially the full length thereof,

(c) the pitch diameter cross sections of said rolled helical thread formation being of circular shape throughout the full length of said shank [17] and said work-entering end portions [19],

(d) a plurality of circumferentially spaced apart discrete thread forming protuberances [21] expressed from the flanks of the helical thread formation on said working-entering end portion [19] and throughout substantially the full length thereof,

*998 (e) each of said protuberances [21] in cross section taken in the plane of intersecting said protuberance at the point of greatest offset of said protuberance from the helix of the thread and in a direction at right angles to the thread having a cross sectional boundary line along at least one side thereof extending substantially parallel with and substantially uniformly offset from the flank of the thread immediately forward thereof in the direction toward the tip of said work-entering end portion [19]

(f) the surface of the protuberance [21] on at least the forward side thereof in the direction toward said tip sloping smoothly and gradually from the flank of said thread to said boundary line,

(g) the crests of said protuberances [21] from said tip to said shank [17] increasing in distance progressively radially outwardly from the screw axis and the crest of the protuberance next adjacent the shank portion [17] being substantially the same distance radially outwardly from said axis as the crest of the thread on said shank portion and also substantially the same cross-sectional shape and dimensions.

The applications describe the function of the protuberances 21 as swaging the internal threads in the pilot hole in the work. This is in contrast to known self-tapping screws without such protuberances and in which substantially the full length of the thread performs that function. An advantage inherent in the present structure is a significant reduction of the contact friction during thread cutting.

The interference was originally declared January 30, 1963 with counts 1 and 2 which were generally similar to present counts 3 and 4. At that time Kahn was senior party because his application had the earlier filing date.

During the motion period Phipard moved (1) to amend to add two dependent counts to the interference issue, and (2) to shift the burden of proof on the basis that he was entitled to be designated the senior party by reason of the earlier filing date of his 1960 application.

Kahn filed a timely motion to dissolve. The motion was directed solely to clause (f) of counts 1 and 2 which then read:

(f) the surface of the protuberance on at least the forward side thereof in the direction toward said tip sloping smoothly and gradually from the flank of said thread to said boundary at a means [sic] angle with respect to the screw axis slightly greater than the angle of the pitch line of the thread with respect to said axis, [Emphasis added.]

It was Kahn’s position on this motion that the recitation in this clause of the emphasized portion prevented either party from making the count, and further that it was “vague, indefinite, confused and misdescriptive.”

Phipard then moved to substitute new counts for counts 1 and 2. In the proposed new counts, the recitation in question in clause (f) was shortened by deleting the words “of the pitch line.”

Kahn filed briefs in opposition to Phipard’s motions, stating with respect to the motion to shift:

* * * the subject-matter of the Interference Counts 1 and 2 simply is not disclosed in the earlier Phipard application for the same reason that these Counts are not disclosed in the later Phipard application as originally filed in the U.S. Patent Office. [Emphasis added.]

On June 25, 1964 the primary examiner granted the Kahn motion to dissolve, holding that the language of clause (f) in counts 1 and 2 was indefinite. He also denied Phipard’s motions to add the proposed dependent counts and to shift the burden of proof, characterizing the latter as immaterial. In denying Phipard’s motion to substitute counts, the examiner observed that the proposed deletion of the phrase “of the pitch line” in clause (f) overcame one of Kahn’s *999 objections to the clause, but held that the retention of the terminology “mean angle” left the language indefinite.

In the same decision, however, the examiner suggested two substitute counts which ultimately became counts 3 and 4 here in issue. These counts are identical in substance to the original counts except that the language in clause (f), relied upon by Kahn in his motion to dissolve, was deleted completely. ■ Clause (f) in former count 1 was thus shortened to read:

Free access — add to your briefcase to read the full text and ask questions with AI

Related

Correge v. Murphy
705 F.2d 1326 (Federal Circuit, 1983)
U. S. Department of Energy v. Szulinski
673 F.2d 385 (Customs and Patent Appeals, 1982)
Quabaug Rubber Company v. Fabiano Shoe Co., Inc.
567 F.2d 154 (First Circuit, 1977)
Wetmore v. Quick
536 F.2d 937 (Customs and Patent Appeals, 1976)

Cite This Page — Counsel Stack

Bluebook (online)
397 F.2d 995, 55 C.C.P.A. 1284, 158 U.S.P.Q. (BNA) 269, 1968 CCPA LEXIS 289, Counsel Stack Legal Research, https://law.counselstack.com/opinion/simon-s-kahn-v-harvey-f-phipard-jr-ccpa-1968.