Legal Opinion

Application of Kenneth A. Metcalfe and William H. Lowe

Court of Customs and Patent Appeals

Decided June 5, 1969No. Patent Appeal 8158PublishedCited by 8 opinions

1Opinion of the Court

RICH, Acting Chief Judge.

This appeal is from a decision of the Patent Office Board of Appeals affirm ing the rejection of claims 10-14 of application serial No. 293,853, filed July 9, 1963, entitled “Liquid Developer for Electrostatic Images.”

The Invention and Claims

The invention relates to a liquid developer for use in electrostatic printing processes. Broadly, such processes involve the creation of latent electrostatic images on a suitable substrate, such as paper, followed by “development” of the images by the application of pigment particles to render them visible. The particles, which…

2Cases cited1 opinion

  1. Application of John F. CorrCourt of Customs and Patent Appeals · 1965

3Cited by8 opinions

  1. In Re Jack R. Wands, Vincent R. Zurawski, Jr., and Hubert J.P. SchoemakerCourt of Appeals for the Federal Circuit · 1988
  2. Application of Alexander D. Argoudelis, Clarence De Boer, Thomas E. Eble and Ross R. HerrCourt of Customs and Patent Appeals · 1970
  3. In re AndersonCourt of Customs and Patent Appeals · 1973
  4. Weil v. FritzCourt of Customs and Patent Appeals · 1978
  5. In re ColemanCourt of Customs and Patent Appeals · 1973

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