Granted Patent
Utility
US 6,187,885 · App. 08/367,913
Copolymers of vinylidene fluoride and hexafluoropropylene and process for preparing the same
Inventor:
Leonard A. Barber
Patented Case
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Granted: Feb 13, 2001
Filed: Jan 3, 1995
Inventor
Leonard A. Barber
Assignee (at issue)
ATOFINA Chemicals, 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.