Granted Patent
Utility
US 6,400,246 · App. 10/029,480
Switch with magnetically coupled dual armature
Inventors:
Scott Allen Hill, Frank Freeman
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Dec 20, 2001
Inventors
Scott Allen Hill
Frank Freeman
Assignee (at issue)
Duraswitch Industries, Inc.
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.