Granted Patent
Utility
US 4,973,788 · App. 07/347,662
Vinylidene dimer process
Inventors:
Kaung-Far Lin, Gunner E. Nelson, Carroll W. Lanier
Patented Case
View Patent ↗
Granted: Nov 27, 1990
Filed: May 5, 1989
Inventors
Kaung-Far Lin
Gunner E. Nelson
Carroll W. Lanier
Assignee (at issue)
Ethyl Corporation
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.