Granted Patent
Utility
US 6,043,441 · App. 09/395,458
Membrane switch device capable of ensuring bonding around mounting holes
Inventor:
Junji Hashida
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Sep 14, 1999
Inventor
Junji Hashida
Assignee (at issue)
ALPS 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.