Granted Patent
Utility
US 4,334,081 · App. 06/227,931
Preparation of substituted olefins
Inventor:
Ismael Colon
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Jan 23, 1981
Inventor
Ismael Colon
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.