Granted Patent
Utility
US 4,061,864 · App. 05/652,239
Thiol containing compounds and their preparation
Inventors:
James L. Guthrie, Shrikant Vishwanath Dighe
Patented Case
View Patent ↗
Granted: Dec 6, 1977
Filed: Jan 26, 1976
Inventors
James L. Guthrie
Shrikant Vishwanath Dighe
Assignee (at issue)
W. R. Grace & Co.
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.