Granted Patent
Utility
US 5,223,498 · App. 07/458,237
Phenylamidine and phenylguanidine derivatives and their use as antidiabetic agents
Inventor:
Balasubramanian Gopalan
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Dec 28, 1989
Inventor
Balasubramanian Gopalan
Assignee (at issue)
THE BOOTS COMPANY PLC
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.