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In re Tanaka

551 F.2d 855, 193 U.S.P.Q. (BNA) 138
CourtCourt of Customs and Patent Appeals
DecidedMarch 10, 1977
DocketPatent Appeal No. 76-629
StatusPublished

This text of 551 F.2d 855 (In re Tanaka) 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
In re Tanaka, 551 F.2d 855, 193 U.S.P.Q. (BNA) 138 (ccpa 1977).

Opinions

RICH, Judge.

This appeal is from a decision of the Patent and Trademark Office Board of Appeals (board) affirming the rejection under 35 U.S.C. § 103 of claims 27, 29, 31, 33, 36, 37, and 41 in appellants’ application serial No. 133,990, filed April 14, 1971, for reissue of their United States patent No. 3,438,706 entitled “Electrophotographic Device.” The board reversed the § 103 rejection of claim 42. The patent is assigned to Canon, Inc. of Japan. We affirm in part and reverse in part.

The Invention

The invention sought to be secured by this reissue application is a resilient scraping blade used to remove residual toner. particles from the photosensitive surface of an electrophotographic copying machine after transfer of the toner particle image to the copy material. The residual particles may then be recovered for reuse. The invention may be understood with more particularity by reading claim 33 with Fig. 11 (emphasis and bracketed numerals ours):

[857]*857

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Related

In re Pearson
494 F.2d 1399 (Customs and Patent Appeals, 1974)

Cite This Page — Counsel Stack

Bluebook (online)
551 F.2d 855, 193 U.S.P.Q. (BNA) 138, Counsel Stack Legal Research, https://law.counselstack.com/opinion/in-re-tanaka-ccpa-1977.