Granted Patent
Utility
US 4,950,241 · App. 07/290,494
Disposable syringe
Inventor:
Alan B. Ranford
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Dec 27, 1988
Inventor
Alan B. Ranford
Assignee (at issue)
Sherwood Medical Company
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.