Granted Patent
Utility
US 4,045,508 · App. 05/633,677
Method of making alpha-olefin oligomers
Inventors:
Barrett L. Cupples, William J. Heilman, A. Norman Kresge
Patented Case
View Patent ↗
Granted: Aug 30, 1977
Filed: Nov 20, 1975
Inventors
Barrett L. Cupples
William J. Heilman
A. Norman Kresge
Assignee (at issue)
Gulf Research & Development Company
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.