Granted Patent
Utility
US 4,692,515 · App. 06/874,917
Adamantane-spirolactams
Inventors:
Vassil S. Georgiev, George B. Mullen
Patented Case
View Patent ↗
Granted: Sep 8, 1987
Filed: Jun 16, 1986
Inventors
Vassil S. Georgiev
George B. Mullen
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.