Granted Patent
Utility
US 4,517,541 · App. 06/550,182
Snap type thermally responsive switch device
Inventors:
Susumu Ubukata, Yasukazu Mizutani, Shozo Iyoda
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: Nov 9, 1983
Inventors
Susumu Ubukata
Yasukazu Mizutani
Shozo Iyoda
Assignee (at issue)
Susumu Ubukata
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.