Granted Patent
Utility
US 4,198,528 · App. 05/872,179
Preparation of di-tertiary peroxides
Inventor:
Donald R. Kelsey
Patented Case
View Patent ↗
Granted: Apr 15, 1980
Filed: Jan 25, 1978
Inventor
Donald R. Kelsey
Assignee (at issue)
Union Carbide 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.