Granted Patent
Utility
US 5,347,008 · App. 07/975,153
Thio(cyclo) alkanepolycarboxylic acids containing heterocyclic substituents
Inventors:
Robert L. Bentley, Michael P. Savage, Kenneth W. Shelton
Patented Case
View Patent ↗
Granted: Sep 13, 1994
Filed: Nov 12, 1992
Inventors
Robert L. Bentley
Michael P. Savage
Kenneth W. Shelton
Assignee (at issue)
Ciba-Geigy
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.