Granted Patent
Utility
US 4,794,138 · App. 07/090,819
Pentaerythritol co-esters where up to 75 percent of the acid component is alkylthioalkanoic
Inventors:
Neil Dunski, Ali A. Bazzi
Patented Case
View Patent ↗
Granted: Dec 27, 1988
Filed: Aug 28, 1987
Inventors
Neil Dunski
Ali A. Bazzi
Assignee (at issue)
MALLINCKRODT 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.