Granted Patent
Utility
US 4,899,003 · App. 06/753,975
Process for oxydehydrogenation of ethane to ethylene
Inventors:
Robert M. Manyik, Jonathan L Brockwell, John E. Kendall
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Jul 11, 1985
Inventors
Robert M. Manyik
Jonathan L Brockwell
John E. Kendall
Assignee (at issue)
Union Carbide Chemicals & Plastics
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.