Granted Patent
Utility
US 6,310,528 · App. 09/573,334
Overcurrent-tripping device for circuit breaker
Inventors:
Katsunori Kuboyama, Naoshi Uchida, Isamu Nagahiro
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: May 18, 2000
Inventors
Katsunori Kuboyama
Naoshi Uchida
Isamu Nagahiro
Assignee (at issue)
FUJI ELECTRIC CO., 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.