Granted Patent
Utility
US 4,476,342 · App. 06/510,480
Preparation of highly branched chain oligomers
Inventors:
Mark J. O'Hara, Tamotsu Imai
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Jul 1, 1983
Inventors
Mark J. O'Hara
Tamotsu Imai
Assignee (at issue)
UOP LLC
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.