Granted Patent
Utility
US 4,283,448 · App. 06/121,365
Composite polytetrafluoroethylene article and a process for making the same
Inventor:
Jeffery B. Bowman
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Feb 14, 1980
Inventor
Jeffery B. Bowman
Assignee (at issue)
W. L. Gore & Associates, 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.