System to detect mail in a mailbox

Details System to detect mail in a mailbox System to detect mail in a mailbox

2007-03-06

2007-03-06

Tweel, Jr., John (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C200S061630

Reexamination Certificate

active

10966051

ABSTRACT:
In a first embodiment, the system10includes a sensor12,a transmitter14coupled to the sensor12and adapted to transmit a signal, a receiver16adapted to receive the signal, and a remote indicator18coupled to the receiver16.In a second embodiment, the receivers16′ are actually transceivers that can retransmit the signals to a receiver16′ of another remote indicator18and that cooperatively form a mesh network. This arrangement may be quite useful in certain environments, such as a tall apartment building and a long private street, where multiple users are relatively spread out.

REFERENCES:
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patent: 6155482 (2000-12-01), Perry
patent: 6433684 (2002-08-01), Lie
patent: 6462659 (2002-10-01), Schuette
patent: 6816074 (2004-11-01), Wong
Gizmo City, Wireless Mail Alert, Web Page, http://www.gizmocity.com/mailalert.asp.

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