Granted Patent
Utility
US 5,948,432 · App. 08/979,526
Keratin-based sheet material for biomedical applications and method of production
Inventors:
Scott F. Timmons, Cheryl R. Blanchard, Robert A. Smith
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Nov 26, 1997
Inventors
Scott F. Timmons
Cheryl R. Blanchard
Robert A. Smith
Assignee (at issue)
Keraplast Technologies, Ltd.
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.