IP Library Granted Patent US 4,348,122
Granted Patent Utility
US 4,348,122 · App. 06/200,254

Shift lock and position indicating torsion spring activated key switch

Inventors: Justin O. Balta, Edward I. Nelson
Patented Case View Patent ↗
Granted: Sep 7, 1982 Filed: Oct 23, 1980
Inventors
Justin O. Balta
Edward I. Nelson

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.

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Quick Facts
Patent No.
US 4,348,122
App. No.
06/200,254
Filed
1980-10-23
Granted
1982-09-07
Kind
A