Granted Patent
Utility
US 4,614,810 · App. 06/653,254
4,5-dihydro-4-oxo-2-[(2-trans-phenylcyclopropyl)amino]-3-furancarboxylic acids and derivatives thereof
Inventors:
Vassil S. Georgiev, Robert Mack, Clyde R. Kinsolving
Patented Case
View Patent ↗
Granted: Sep 30, 1986
Filed: Sep 24, 1984
Inventors
Vassil S. Georgiev
Robert Mack
Clyde R. Kinsolving
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.