Legal Opinion

In re Henderson

Court of Appeals for the D.C. Circuit

Decided January 3, 1921No. 1322PublishedCited by 5 opinions

Appeal from the Commissioner of Patents. Application by Clark T. Henderson for a patent. From a decision of the Commissioner of Patents, refusing to allow claims 1 to 5 of the application, applicant appeals.

1Opinion of the Court

SMYTH, Chief Justice.

The Commissioner of Patents refused to allow claims 1 to 5, inclusive, of Henderson’s application, on the ground that he was estopped from asserting them. Claim 1 is representative of the others, and is as follows:

A controller having positive and negative line terminals and terminals for the device to be controlled, an electromagnetic switch for connecting one of *708the line terminals to one of the terminals for said, device, another electromagnetic switch for connecting the same line terminal to the other terminal for said device, a third electromagnetic switch for…

2Cases cited1 opinion

  1. In re DementCourt of Appeals for the D.C. Circuit · 1920

3Cited by5 opinions

  1. In Re HortonCourt of Customs and Patent Appeals · 1932
  2. Application of WalkerCourt of Customs and Patent Appeals · 1954
  3. Application of David BandelCourt of Customs and Patent Appeals · 1965
  4. Typewriters Hilliardized, Inc. v. Corona Typewriter Co.Court of Appeals for the Second Circuit · 1930
  5. Application of David BandelCourt of Customs and Patent Appeals · 1965

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