Granted Patent
Utility
US 4,477,674 · App. 06/472,332
Preparation of dihydrothiazoles
Inventor:
Bernardus A. O. Alink
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Mar 4, 1983
Inventor
Bernardus A. O. Alink
Assignee (at issue)
Petrolite 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.