Legal Opinion
In Re Wietzel
Court of Customs and Patent Appeals
Decided April 14, 1930No. Patent Appeal 2229PublishedCited by 5 opinions
1Opinion of the Court
HATFIELD, Associate Judge.
This is an appeal from the decision of the Board of Appeals affirming the decision of the Examiner denying appellant’s claims 1 to 5, inclusive, for an alleged invention relating to a-process of manufacturing form-amid and hydrocyanic acid.
The claims in issue read as follows:
“1. The process of manufacturing forrnamid and hydrocyanic acid which consists in exposing alkyl formate vapor and ammonia to elevated temperatures in the presence of a contact mass.
“2. The process of manufacturing hydrocyanic acid which consists in exposing alkyl formate vapor and ammonia to a…
2Cited by5 opinions
- Dickinson v. ZurkoSupreme Court of the United States · 1999
- Dickinson v. ZurkoSupreme Court of the United States · 1999
- Dickinson v. ZurkoSupreme Court of the United States · 1999
- Application of Alfred W. KrogmanCourt of Customs and Patent Appeals · 1955
- In re ArkleyCourt of Customs and Patent Appeals · 1972