Granted Patent
Utility
US 5,364,981 · App. 08/148,248
On-step synthesis of methyl t-butyl ether from t-butanol using platinum/palladium modified .beta.-zeolite catalysts
Inventors:
John F. Knifton, Pei-Shing E. Dai
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Nov 8, 1993
Inventors
John F. Knifton
Pei-Shing E. Dai
Assignee (at issue)
Texaco Chemical Inc.
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.