Granted Patent
Utility
US 4,552,976 · App. 06/644,470
Process for oxidative dicarbonylation of butadiene
Inventors:
Jiang-Jen Lin, John F. Knifton
Patented Case
View Patent ↗
Granted: Nov 12, 1985
Filed: Aug 27, 1984
Inventors
Jiang-Jen Lin
John F. Knifton
Assignee (at issue)
Texaco 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.