Granted Patent
Utility
US 5,478,905 · App. 08/384,068
Amorphous tetrafluoroethylene/hexafluoropropylene copolymers
Inventors:
Colin Anolick, Viacheslav A. Petrov, Bruce E. Smart, Charles W. Stewart, Robert Clayton Wheland
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: Feb 6, 1995
Inventors
Colin Anolick
Viacheslav A. Petrov
Bruce E. Smart
Charles W. Stewart
Robert Clayton Wheland
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.