Granted Patent
Utility
US 4,507,481 · App. 06/518,514
Pyrrolo[1,2-a]imidazoles and imidazo[1,2-a]pyridines
Inventors:
Thomas A. Davidson, Robert J. Murray
Patented Case
View Patent ↗
Granted: Mar 26, 1985
Filed: Jul 29, 1983
Inventors
Thomas A. Davidson
Robert J. Murray
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.