The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 1977
Filed:
Nov. 03, 1975
Steve Dobler, Whitestone, NY (US);
Christian Grund, Bronx, NY (US);
Robert Fondiller, New York, NY (US);
Other;
Abstract
A solid state touch switch is provided, in which, during use, a portion of the user's body, such as a finger, forms a portion of an electronic circuit to change the state of a solid state electronic device and thereby actuate the solid state touch switch. Alternative embodiments of the invention contemplate the use of various solid state electronic devices including metal-oxide semiconductor field-effect transistors (MOSFET'S) junction field effect transistors, silicon controlled rectifiers and NPN transistors. One application of the solid state touch switch is in a digital watch in which a user touches a contact pad located on the watch case and thereby turns the digital watch on for the display of time and date signals.