Granted Patent
Utility
US 5,462,992 · App. 08/414,159
Acetoacetylated polymers crosslinked with carbamylmethylaminotriazines
Inventors:
Truman F. Wilt, Deborah E. Hayes, Charles R. Krepley, Daniel E. Rardon
Patented Case
View Patent ↗
Granted: Oct 31, 1995
Filed: Mar 31, 1995
Inventors
Truman F. Wilt
Deborah E. Hayes
Charles R. Krepley
Daniel E. Rardon
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.