Granted Patent
Utility
US 5,296,564 · App. 07/991,419
Process for the polymerization of alpha-olefins
Inventors:
Helmut Derleth, Abel Grosjean
Patented Case
View Patent ↗
Granted: Mar 22, 1994
Filed: Dec 16, 1992
Inventors
Helmut Derleth
Abel Grosjean
Assignee (at issue)
SOLVAY (Société Anonyme)
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.