Granted Patent
Utility
US 5,300,549 · App. 07/683,996
Polyolefin compositions and method and compositions for their preparation
Inventors:
James J. Ward, Thomas E. Breuer
Patented Case
View Patent ↗
Granted: Apr 5, 1994
Filed: Apr 11, 1991
Inventors
James J. Ward
Thomas E. Breuer
Assignee (at issue)
Witco 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.