Granted Patent
Utility
US 4,293,727 · App. 06/179,076
Process for the oligomerization of ethylene
Inventors:
David L. Beach, James J. Harrison
Patented Case
View Patent ↗
Granted: Oct 6, 1981
Filed: Aug 18, 1980
Inventors
David L. Beach
James J. Harrison
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.