Granted Patent
Utility
US 4,631,392 · App. 06/630,792
Flexible high temperature heater
Inventors:
Michael O'Brien, Umesh Sopory, Shou-Mean Fang
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Jul 13, 1984
Inventors
Michael O'Brien
Umesh Sopory
Shou-Mean Fang
Assignee (at issue)
Raychem Limited
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.