Granted Patent
Utility
US 5,874,032 · App. 08/545,799
Method for manufacturing expanded polytetrafluoroethylene products
Inventors:
Richard J. Zdrahala, Nick Popadiuk, David J. Lentz, Edward Dormier
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Apr 15, 1996
Inventors
Richard J. Zdrahala
Nick Popadiuk
David J. Lentz
Edward Dormier
Assignee (at issue)
Meadox Medicals, 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.