Ehrenfels; Alfred L.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ehrenfels; Alfred L..The latest application filed is for "method of making universal electrical connector".

Company Profile

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Ehrenfels; Alfred L. - Cheshire CT
Ehrenfels; Alfred L. - Chesire CT

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Method of making universal electrical connector Grant 5,758,414 - Ehrenfels June 2, 1	1998-06-02
Universal electrical connector for receiving DC and AC electrical connectors Grant 5,584,715 - Ehrenfels December 17, 1	1996-12-17
Electrical cable and connector assembly with safety pilot line disconnect, especially for electric vehicle Grant 5,346,406 - Hoffman , et al. September 13, 1	1994-09-13
Dead front electrical connector for recharging electric vehicles Grant D349,276 - Hoffman , et al. August 2, 1	1994-08-02
Housing for switched electrical receptacle or the like Grant 5,239,129 - Ehrenfels August 24, 1	1993-08-24
Flush mounted receptacle and plug with pin and sleeve type contacts Grant 5,035,646 - Ehrenfels , et al. July 30, 1	1991-07-30
Connector shunt structure Grant 4,790,765 - Ehrenfels , et al. December 13, 1	1988-12-13
Electrical connector with component keying system Grant 4,736,999 - Marks , et al. April 12, 1	1988-04-12
Detenting lift cover Grant 4,381,879 - Ehrenfels , et al. May 3, 1	1983-05-03
Non-rigid mechanical coupling for a fire-rated feed-through fitting and method of making Grant 4,243,835 - Ehrenfels January 6, 1	1981-01-06

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