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:
Oct. 30, 1990
Filed:
Jan. 06, 1989
Applicant:
Inventors:
Edward S Murrer, Redwood City, CA (US);
Mir A Imran, Palo Alto, CA (US);
Assignee:
DataTrak, Inc., Mountain View, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E05B / ; E05B / ;
U.S. Cl.
CPC ...
361172 ; 70219 ; 70278 ; 34082531 ;
Abstract
Electronic door lock system for use with a door mounted in a door frame and has a dead bolt and a latch mounted on the door. A control unit is mounted on the door in the vicinity of the dead bolt and the latch and includes a battery and electronic circuitry connected to the battery and manually operable contacts for selectively operating the dead bolt and the latch so that they can be moved to unlatched positions under the control of first and second hand-operated members.