Granted Patent
Utility
US 5,202,382 · App. 07/818,661
Thermosetting powder coating composition containing a mixture of low Tg and high Tg polymers with acid functional groups
Inventor:
Paul H. Pettit, Jr.
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Jan 9, 1992
Inventor
Paul H. Pettit, Jr.
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.