Granted Patent
Utility
US 4,313,006 · App. 06/183,705
Process for converting dialkyl sulfides to alkyl mercaptans
Inventor:
Robert B. Hager
Patented Case
View Patent ↗
Granted: Jan 26, 1982
Filed: Sep 3, 1980
Inventor
Robert B. Hager
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.