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
Digital processing method and system for determination of optical flow
Nucleic acid sequences encoding strictosidine synthase proteins
System and method for ensuring compliance with organizational policies
Catalyst compositions for hydroformylation reaction and hydroformylation process using the same
Particle-loaded membrane for solid-phase-extraction and method for performing SALDI-MS analysis of an analyte
Automated synchronization of design features in disparate code components using type differencing
Lighting control device and lighting control method
  Randomly Featured Patents
Closure device for a fluid product reservoir
Bearing stress-free locking device
Catalyst system
Document summarizing apparatus, document summarizing method and recording medium carrying a document summarizing program
Combined aquarium and animal exhibit
Polyphase rectifying bridge with commutation fault protection
Differential cascode magneto-resistance preamplifier with bias bypass
Automatically operating interlock assembly requiring an electrical cabinet to be closed before connection of the equipment therein
Stator of rotary electric machine and method for making the same