Granted Patent
Utility
US 6,136,443 · App. 09/074,920
Acid etch resistant film-forming compositions and composite coating compositions
Inventors:
George W. Mauer, Daniel Kish, Melissa S. Rush-Batista
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: May 8, 1998
Inventors
George W. Mauer
Daniel Kish
Melissa S. Rush-Batista
Assignee (at issue)
PPG Industries Ohio, 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.