Granted Patent
Utility
US 4,618,635 · App. 06/735,096
Coating compositions prepared from lactone-acrylate adduct, polyol and isocyanate
Inventors:
Claiborn L. Osborn, Joseph V. Koleske, Kenneth C. Drake
Patented Case
View Patent ↗
Granted: Oct 21, 1986
Filed: May 17, 1985
Inventors
Claiborn L. Osborn
Joseph V. Koleske
Kenneth C. Drake
Assignee (at issue)
Union Carbide Corporation
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.