Granted Patent
Utility
US 4,569,690 · App. 06/531,362
3-Aryl-5,6-dihydro-1,4,2-oxathiazines and their oxides
Inventors:
Walter G. Brouwer, Allyn R. Bell, Allen R. Blem, Robert A. Davis
Patented Case
View Patent ↗
Granted: Feb 11, 1986
Filed: Sep 12, 1983
Inventors
Walter G. Brouwer
Allyn R. Bell
Allen R. Blem
Robert A. Davis
Assignees (at issue)
Uniroyal Ltd.
Uniroyal 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.