Granted Patent
Utility
US 4,877,455 · App. 07/008,720
Coatings utilizing graft polyols
Inventors:
Melvin Brauer, Dominic Simone
Patented Case
View Patent ↗
Granted: Oct 31, 1989
Filed: Jan 30, 1987
Inventors
Melvin Brauer
Dominic Simone
Assignee (at issue)
CassChem, 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.