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Legal Opinion

Application of Erwin F. Schoenewaldt

Court of Customs and Patent Appeals

Decided April 22, 1965No. Patent Appeal 7345PublishedCited by 5 opinions

1Opinion of the Court

MARTIN, Judge.

This appeal is from the board’s affirmance of the rejection of the single claim in an application, serial No. 541,299, titled “Chemical Compound and Process of Preparing the Same,” filed by appellant on October 18,1955.

The invention is an ester derivative of hydrocortisone. The claim reads:1

“1. A 4-pregnene-l lp, 17a,21-triol-3,20-dione 21-hemisuccinate having the following structural formula:

The compound is produced by reacting succinic anhydride with hydrocortisone in a pyridine medium at room temperature for 22 hours. The succinic anhydride “selectively” esterifies the…

2Cases cited13 opinions

  1. Western States MacH. Co. v. S. S. Hepworth Co.Court of Appeals for the Second Circuit · 1945
  2. Application of Robert J. HarryCourt of Customs and Patent Appeals · 1964
  3. Old Town Ribbon & Carbon Co. v. Columbia Ribbon & Carbon Mfg. Co.Court of Appeals for the Second Circuit · 1947
  4. Detrola Radio & Television Corp. v. Hazeltine Corp.Supreme Court of the United States · 1941
  5. In re GreggCourt of Customs and Patent Appeals · 1957

8 more not listed; retrieve them via the Exa API.

3Cited by5 opinions

  1. Application of Edwin H. Land and Howard G. RogersCourt of Customs and Patent Appeals · 1966
  2. General Motors Corp. v. United States International Trade Commission & Kuhlman Corp.Court of Customs and Patent Appeals · 1982
  3. Application of Edwin H. Land and Howard G. RogersCourt of Customs and Patent Appeals · 1966
  4. Application of Erwin F. SchoenewaldtCourt of Customs and Patent Appeals · 1965
  5. In re Van Der LelyCourt of Customs and Patent Appeals · 1979

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