Granted Patent
Utility
US 4,278,092 · App. 06/054,709
Peritoneal catheter
Inventors:
Alexander S. Borsanyi, Peter Ivanovich, Urte Vaughan
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Jul 5, 1979
Inventors
Alexander S. Borsanyi
Peter Ivanovich
Urte Vaughan
Assignee (at issue)
American Hospital Supply Corp.
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.