Granted Patent
Utility
US 5,476,972 · App. 08/188,007
Isopropyl alcohol and ether production from crude by-product acetone
Inventors:
Pei-Shing E. Dai, Robert J. Taylor, Jr., John F. Knifton, Bobby R. Martin
Patented Case
View Patent ↗
Granted: Dec 19, 1995
Filed: Jan 28, 1994
Inventors
Pei-Shing E. Dai
Robert J. Taylor, Jr.
John F. Knifton
Bobby R. Martin
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.