Granted Patent
Utility
US 4,281,202 · App. 06/144,897
Preparation of mercapto-alcohols
Inventors:
Bernard Buchholz, Charles B. Welsh, Henry C. Miller
Patented Case
View Patent ↗
Granted: Jul 28, 1981
Filed: Apr 29, 1980
Inventors
Bernard Buchholz
Charles B. Welsh
Henry C. Miller
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.