Granted Patent
Utility
US 4,445,891 · App. 06/411,252
Catheter
Inventor:
Bhupendra C. Patel
Patented Case
View Patent ↗
Granted: May 1, 1984
Filed: Aug 25, 1982
Inventor
Bhupendra C. Patel
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.