Granted Patent
Utility
US 5,989,709 · App. 09/070,061
Polytetrafluoroethylene fiber
Inventors:
Thomas Kelmartin, George M. Roberts, John W. Dolan, Raymond B. Minor
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Apr 30, 1998
Inventors
Thomas Kelmartin
George M. Roberts
John W. Dolan
Raymond B. Minor
Assignee (at issue)
Gore Enterprise Holdings, Inc.
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.