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:
Aug. 27, 2002
Filed:
Feb. 21, 2001
Applicant:
Inventors:
Matthew P. Marko, Bloomfield Hills, MI (US);
Adam J. Kollin, Rochester Hills, MI (US);
Assignee:
Marlin Security Systems, Inc., Bloomfield Hills, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E05B 4/506 ;
U.S. Cl.
CPC ...
E05B 4/506 ;
Abstract
Apparatus for providing a signal in response to the actuation of an internal lock mechanism for a door latch to a locked condition of the door latch and for detecting the locked condition when the door is in a closed position with the door latch bolt in the door jamb. Detection apparatus is located in the door jamb and senses the lock signal and in turn can provide a signal locally or to a remote security or surveillance system indicating the locked or unlocked condition of the latch bolt when the door is in the closed position.