Granted Patent
Utility
US 4,645,111 · App. 06/281,320
Surgical stapler with retractable anvil
Inventors:
Edward W. Larrabee, Charles M. Huck
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Jul 8, 1981
Inventors
Edward W. Larrabee
Charles M. Huck
Assignee (at issue)
Howmedica 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.