Granted Patent
Utility
US 4,043,328 · App. 05/691,596
Urological drape
Inventors:
Charles D. Cawood, John S. Ziegler
Patented Case
View Patent ↗
Granted: Aug 23, 1977
Filed: Jun 1, 1976
Inventors
Charles D. Cawood
John S. Ziegler
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.