Granted Patent
Utility
US 4,264,753 · App. 06/152,051
Process for polymerizing conjugated dienes
Inventors:
Adel Farhan Halasa, James E. Hali
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: May 20, 1980
Inventors
Adel Farhan Halasa
James E. Hali
Assignee (at issue)
The Firestone Tire & Rubber 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.