Granted Patent
Utility
US 4,491,652 · App. 06/372,461
Sequentially prepared thermoplastic elastomer and method of preparing same
Inventors:
Demetreos N. Matthews, Walter Nudenberg
Patented Case
View Patent ↗
Granted: Jan 1, 1985
Filed: Apr 29, 1982
Inventors
Demetreos N. Matthews
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.