Granted Patent
Utility
US 4,772,741 · App. 07/091,477
Pentaerythritol co-esters containing sulfur in at least one of the acid residues
Inventors:
Neil Dunski, Ali A. Bazzi
Patented Case
View Patent ↗
Granted: Sep 20, 1988
Filed: Aug 31, 1987
Inventors
Neil Dunski
Ali A. Bazzi
Assignee (at issue)
Millinckrodt, 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.