Granted Patent
Utility
US 4,657,139 · App. 06/781,754
Closure for a syringe collection and disposal container
Inventor:
Paul H. Hanifl
Patented Case
View Patent ↗
Granted: Apr 14, 1987
Filed: Sep 30, 1985
Inventor
Paul H. Hanifl
Assignee (at issue)
Sage Products, LLC
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.