Granted Patent
Utility
US 4,466,903 · App. 06/505,136
Unsaturated 1,3-dioxolane stabilized with aliphatic aldehyde hydrazone
Inventor:
Steven E. Pamer
Patented Case
View Patent ↗
Granted: Aug 21, 1984
Filed: Jun 16, 1983
Inventor
Steven E. Pamer
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.