Granted Patent
Utility
US 5,269,055 · App. 07/917,268
Method of assembling a circuit-breaker pole
Inventor:
Erich Kessi
Patented Case
View Patent ↗
Granted: Dec 14, 1993
Filed: Jul 23, 1992
Inventor
Erich Kessi
Assignee (at issue)
Sprecher Energie AG
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.