Granted Patent
Utility
US 6,825,426 · App. 10/406,570
Make-before-break selector switch
Inventors:
Frank John Muench, Patrick Harold Pride
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Apr 4, 2003
Inventors
Frank John Muench
Patrick Harold Pride
Assignee (at issue)
MCGRAW-EDISON 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.