Granted Patent
Utility
US 4,166,795 · App. 05/137,556
Chemical reaction product of sulfur, lard oil and polyisobutylene
Inventor:
Alexander D. Recchuite
Patented Case
View Patent ↗
Granted: Sep 4, 1979
Filed: Apr 26, 1971
Inventor
Alexander D. Recchuite
Assignee (at issue)
SUNTEC CO., LTD.
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.