Granted Patent
Utility
US 4,625,040 · App. 06/839,298
N-(phenyl) or N-(phenylcyclopropyl)-2,5-dihydro-2-oxo-4[(substituted phenyl)amino]-3-furancarboxamide derivatives
Inventors:
Vassil S. Georgiev, Robert Mack
Patented Case
View Patent ↗
Granted: Nov 25, 1986
Filed: Mar 13, 1986
Inventors
Vassil S. Georgiev
Robert Mack
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.