Granted Patent
Utility
US 4,065,444 · App. 05/609,458
Graft copolymer on butadiene-piperylene elastomer
Inventors:
Edward A. Delaney, Norman J. Pinkowski, Walter Nudenberg
Patented Case
View Patent ↗
Granted: Dec 27, 1977
Filed: Sep 2, 1975
Inventors
Edward A. Delaney
Norman J. Pinkowski
Walter Nudenberg
Assignee (at issue)
Uniroyal Ltd.
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.