Granted Patent
Utility
US 4,623,697 · App. 06/728,966
Ungelled resins containing hydrolyzable moieties from organosilane compounds
Inventors:
Wen-Hsuan Chang, David T. McKeough
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: Apr 30, 1985
Inventors
Wen-Hsuan Chang
David T. McKeough
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.