Granted Patent
Utility
US 4,259,499 · App. 05/899,498
Method for preparing 2-sulfochloride benzoates and the use of same in the preparation of saccharin
Inventor:
Carmine A. DiPippo
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: Apr 24, 1978
Inventor
Carmine A. DiPippo
Assignee (at issue)
James River Graphics Limited
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.