Legal Opinion

In re Duncan

District Court, District of Columbia

Decided May 3, 1920No. 1296PublishedCited by 4 opinions

Appeal from the Commissioner of Patents. Application by Harry E. Duncan for patent. Application rejected, and applicant appeals.

1Opinion of the Court

VAN ORSDEE, Associate Justice.

Appeal from rejection of application for patent for improvements for speed and distance indicator records for use on railroad locomotives.

The rejection of the appealed claims is on the ground that they fail to point out invention. The statute requires an applicant to so formulate his claims that the experts of the Patent Office may understand definitely what they mean, and the invention must be so distinctly described as to be understood by one ordinarily skilled in the art to which the invention belongs.

We agree with the tribunals below that, for the reasons…

2Cited by4 opinions

  1. In re ChandlerCourt of Customs and Patent Appeals · 1958
  2. In re ButtolphCourt of Customs and Patent Appeals · 1935
  3. In re SavageCourt of Customs and Patent Appeals · 1940
  4. Application of Milton E. ChandlerCourt of Customs and Patent Appeals · 1958

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