Granted Patent
Utility
US 5,281,444 · App. 07/815,798
Isophorone-free fluorocarbon coating composition
Inventor:
Robin Hunt
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Jan 2, 1992
Inventor
Robin Hunt
Assignee (at issue)
PPG 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.