Granted Patent
Utility
US 4,374,673 · App. 06/221,760
Stable dispersions of fortified rosin
Inventor:
Paul H. Aldrich
Patented Case
View Patent ↗
Granted: Feb 22, 1983
Filed: Dec 31, 1980
Inventor
Paul H. Aldrich
Assignee (at issue)
HERCULES LLC
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.