Granted Patent
Utility
US 4,499,327 · App. 06/426,213
Production of light olefins
Inventor:
Steven W. Kaiser
Patented Case
View Patent ↗
Granted: Feb 12, 1985
Filed: Oct 4, 1982
Inventor
Steven W. Kaiser
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.