Granted Patent
Utility
US 5,697,390 · App. 08/608,304
Process for producing filled polytetrafluoroethylene resin composite materials and products
Inventors:
David S. Garrison, David A. Delgado, Patricia J. Deeney, David E. Newman
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: Feb 28, 1996
Inventors
David S. Garrison
David A. Delgado
Patricia J. Deeney
David E. Newman
Assignee (at issue)
COLTEC INDUSTRIES, 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.