Granted Patent
Utility
US 5,135,992 · App. 07/466,890
Amide-amine silane resin
Inventors:
Wen-Hsuan Chang, Edward E. McEntire, J. Alden Erikson
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Jan 18, 1990
Inventors
Wen-Hsuan Chang
Edward E. McEntire
J. Alden Erikson
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.