Granted Patent
Utility
US 4,786,717 · App. 06/928,766
Deactivation of aluminum alkyls
Inventors:
Randall K. Bretches, Andrew J. Sivak, Russell L. Stainfield
Patented Case
View Patent ↗
Granted: Nov 22, 1988
Filed: Nov 10, 1986
Inventors
Randall K. Bretches
Andrew J. Sivak
Russell L. Stainfield
Assignee (at issue)
Aristech Chemical 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.