Granted Patent
Utility
US 3,996,937 · App. 05/546,209
Clamp for anatomical tubes
Inventor:
Robert W. Williams
Patented Case
View Patent ↗
Granted: Dec 14, 1976
Filed: Feb 3, 1975
Inventor
Robert W. Williams
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.