Granted Patent
Utility
US 5,239,012 · App. 07/658,615
Ambient temperature curing compositions containing a hydroxy component and an anhydride component and an onium salt
Inventors:
Edward E. McEntire, James A. Claar, Stephen J. Thomas, David N. Walters
Patented Case
View Patent ↗
Granted: Aug 24, 1993
Filed: Feb 21, 1991
Inventors
Edward E. McEntire
James A. Claar
Stephen J. Thomas
David N. Walters
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.