Granted Patent
Utility
US 4,636,198 · App. 06/799,314
Power syringe with volume reducing adapter
Inventor:
John H. Stade
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Nov 18, 1985
Inventor
John H. Stade
Assignee (at issue)
MALLINCKRODT 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.