Granted Patent
Utility
US 6,448,521 · App. 09/516,568
Blocking apparatus for circuit breaker contact structure
Inventors:
Roger N. Castonguay, James L. Rosen
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Mar 1, 2000
Inventors
Roger N. Castonguay
James L. Rosen
Assignee (at issue)
General Electric Company
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.