Granted Patent
Utility
US 4,459,473 · App. 06/380,400
Self-regulating heaters
Inventor:
Hundi Panduranga Kamath
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: May 21, 1982
Inventor
Hundi Panduranga Kamath
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.