Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 200/61.63
Name: Electricity: circuit makers and breakers > Special application > Actuated concurrently with operation or use of art device > Closure, closure operator or accessory > Letter slot or box
Description: Devices in which the closure member or closure operator is associated with a mail slot or receptacle.

Patents under this class:

Patent Number Title Of Patent Date Issued
7843340 Mail delivery alert system Nov. 30, 2010
7506796 Mail delivery notification device Mar. 24, 2009
7187285 System to detect mail in a mailbox Mar. 6, 2007
6831558 Mailbox operated signal device Dec. 14, 2004
6657142 Power switch apparatus Dec. 2, 2003
5898371 Box with detecting means Apr. 27, 1999
5664728 Mail box signal device Sep. 9, 1997
5440294 Mail delivery signal system Aug. 8, 1995
5382945 Mail slot alarm Jan. 17, 1995
5023595 Mail arrival signal system Jun. 11, 1991
4872210 Curbside mailbox signal Oct. 3, 1989
4651135 Mail detector Mar. 17, 1987
4287514 Mailbox announcer Sep. 1, 1981

  Recently Added Patents
Inter-carrier communications for multimedia-message delivery
Method and system for reduction of quantization-induced block-discontinuities and general purpose audio codec
Drive and startup for a switched capacitor divider
Semiconductor memory system having ECC circuit and controlling method thereof
Systems and methods for facilitating communication with foundation fieldbus linking devices
Firewall-tolerant voice-over-internet-protocol (VoIP) emulating SSL or HTTP sessions embedding voice data in cookies
Integrated circuit packaging system with an encapsulation and method of manufacture thereof
  Randomly Featured Patents
Mechanism for, and method of, attaching a lead conductor cable to a lead electrode
System and method for using an endian-neutral data packet to define subsequent data packet byte-order
Portable dispenser apparatus
Magnetic recording medium and method for producing the same
Electronic equipment system for vehicle
Method and device for detecting/correcting color vision and their application
Method of forming a negative differential resistance device
Organic light emitting device having an inorganic isolation pattern and method of manufacturing the same
Intake system of multi-cylinder engine
Nitride-based light emitting heterostructure