Granted Patent
Utility
US 4,722,963 · App. 06/811,209
Aromatic dicarboxylic acid polyamide having acid value greater than 35
Inventor:
Paul D. Whyzmuzis
Patented Case
View Patent ↗
Granted: Feb 2, 1988
Filed: Dec 20, 1985
Inventor
Paul D. Whyzmuzis
Assignee (at issue)
Henkel Limited
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.