Granted Patent
Utility
US 5,476,589 · App. 08/403,232
Porpous PTFE film and a manufacturing method therefor
Inventor:
John E. Bacino
Patented Case
View Patent ↗
Granted: Dec 19, 1995
Filed: Mar 10, 1995
Inventor
John E. Bacino
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.