Granted Patent
Utility
US 4,465,478 · App. 06/434,223
Syringe force amplification device
Inventors:
Eric Sabelman, Timothy A. Koogle, William A. Kennedy, Jr.
Patented Case
View Patent ↗
Granted: Aug 14, 1984
Filed: Oct 14, 1982
Inventors
Eric Sabelman
Timothy A. Koogle
William A. Kennedy, Jr.
Assignee (at issue)
COLLAGEN CORPORATION
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.