Granted Patent
Utility
US 4,471,769 · App. 06/338,181
Surgical drape
Inventor:
Frank D. Lockhart
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Jan 8, 1982
Inventor
Frank D. Lockhart
Assignee (at issue)
Teknamed Corporation
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.