Legal Opinion

Leonard v. Everett

Court of Appeals for the D.C. Circuit

Decided June 5, 1922No. 1500PublishedCited by 7 opinions

Appeal from the Commissioner of Patents. Interference proceeding between Carolyn G. Leonard, as administratrix of the estate of Harry Ward Leonard, deceased, and Stephen W. Everett. From a decision of the Commissioner, awarding priority to Everett, Leonard appeals.

1Opinion of the Court

SMYTH, Chief Justice.

In an interference between Leonard and Everett, the Commissioner awarded priority to the latter. The invention involved relates to a lighting system for vehicles, such as automobiles and railway cars, and comprises an electric generator and a storage battery. There are 39 counts, of which the first 15 are drawn to an apparatus, and the remainder to a process or method. We give counts 1 and 16 as typical:

1. The combination of a source of mechanical power capable of being varied from zero to a maximum speed, a dynamo armature adapted to be driven by said source, a storage…

2Cases cited4 opinions

  1. Chapman v. WintroathSupreme Court of the United States · 1920
  2. De Ferranti v. HarmattaDistrict Court, District of Columbia · 1921
  3. Wahl v. MainDistrict Court, District of Columbia · 1922
  4. Chessin v. KlahnCourt of Appeals for the D.C. Circuit · 1922

3Cited by7 opinions

  1. Beidler v. CapsCourt of Customs and Patent Appeals · 1929
  2. Corbett v. ChisholmCourt of Customs and Patent Appeals · 1977
  3. Robbins v. SteinbartCourt of Customs and Patent Appeals · 1932
  4. Hendrickson & Nelson v. Ronning & RonningCourt of Customs and Patent Appeals · 1935
  5. Oldroyd v. MorganCourt of Appeals for the D.C. Circuit · 1928

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