Granted Patent
Utility
US 5,741,331 · App. 08/681,809
Biostable elastomeric polymers having quaternary carbons
Inventor:
Leonard Pinchuk
Patented Case
View Patent ↗
Granted: Apr 21, 1998
Filed: Jul 29, 1996
Inventor
Leonard Pinchuk
Assignee (at issue)
Corvita 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.