Granted Patent
Utility
US 4,490,146 · App. 06/471,363
Laparotomy sponges
Inventor:
Timothy L. Sergeant
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Mar 1, 1983
Inventor
Timothy L. Sergeant
Assignee (at issue)
The Kendall Company LP
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.