Granted Patent
Utility
US 5,112,931 · App. 07/754,773
Blocked polyisocyanates for the production of powder coatings with flat finishes
Inventors:
Terry A. Potter, Hugh C. Grubbs
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Sep 4, 1991
Inventors
Terry A. Potter
Hugh C. Grubbs
Assignee (at issue)
Miles 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.