Granted Patent
Utility
US 3,965,055 · App. 05/442,519
Free curing rubber composition
Inventors:
Daniel Shichman, Sung W. Hong
Patented Case
View Patent ↗
Granted: Jun 22, 1976
Filed: Feb 14, 1974
Inventors
Daniel Shichman
Sung W. Hong
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.