Granted Patent
Utility
US 5,009,640 · App. 07/300,278
Slip cap for cannula use
Inventors:
Thomas Walter Pyret, James L. Gallagher
Patented Case
View Patent ↗
Granted: Apr 23, 1991
Filed: Jan 19, 1989
Inventors
Thomas Walter Pyret
James L. Gallagher
Assignee (at issue)
The Upjohn Co.
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.