Granted Patent
Utility
US 5,008,335 · App. 07/471,758
Powder coating compositions of polyepoxides, acrylic copolymers and aliphatic or polyester dibasic acids
Inventor:
Paul H. Pettit, Jr.
Patented Case
View Patent ↗
Granted: Apr 16, 1991
Filed: Jan 29, 1990
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.