Granted Patent
Utility
US 5,167,631 · App. 07/761,306
Portable infusion device
Inventors:
John S. Thompson, Giorgio di Palma, Charles R. Botts
Patented Case
View Patent ↗
Granted: Dec 1, 1992
Filed: Sep 17, 1991
Inventors
John S. Thompson
Giorgio di Palma
Charles R. Botts
Assignee (at issue)
Imed Inc
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.