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US Patent 7571694 Occupancy indication device and method

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Is a
Patent
Patent

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7571694
Date of Patent
August 11, 2009
Patent Application Number
11687537
Date Filed
March 16, 2007
Patent Citations Received
‌
US Patent 12006729 Locking mechanism with status indicator
3
‌
US Patent 11851137 Manually operated retractable shade system
4
Patent Primary Examiner
‌
Amy Cohen Johnson
Patent abstract

An occupancy indicator for a door, and a method of use, one embodiment comprising a magnet a switching apparatus activatable by a person, a signaling device adapted to indicate one of at least two states, and a biasing mechanism. One embodiment may not be comprised of a magnet but may be comprised of a bolt assembly having a plurality of biasing mechanisms. The magnet or bolt assembly, switching apparatus, signaling device, and biasing mechanism are operatively coupled to automatically provide a signaling device state upon the door opening.

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