Granted Patent
Utility
US 4,351,946 · App. 06/207,037
Fluorinated heterocyclic sulfides
Inventors:
Sameeh S. Toukan, Murray Hauptschein
Patented Case
View Patent ↗
Granted: Sep 28, 1982
Filed: Nov 14, 1980
Inventors
Sameeh S. Toukan
Murray Hauptschein
Assignee (at issue)
Pennwalt Corporation
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.