Granted Patent
Utility
US 4,652,680 · App. 06/695,312
2-adamantanone oxide carbamate derivatives
Inventors:
Vassil S. Georgiev, Grace A. Saeva
Patented Case
View Patent ↗
Granted: Mar 24, 1987
Filed: Jan 28, 1985
Inventors
Vassil S. Georgiev
Grace A. Saeva
Assignee (at issue)
Pennwalt Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.