Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Method for isomerisation of hop alpha-acids using heterogeneous alkaline earth metal based catalysts
Packet bundling at the PDCP layer
Dynamic reconstruction of a calibration state of an absorption spectrometer
Radio communication device and sequence length adjusting method
Avirulent oncolytic herpes simplex virus strains engineered to counter the innate host response
Portable massage apparatus
Preserving and handling native data in hybrid object trees
  Randomly Featured Patents
Flagstaff with hand salute figure
Printed circuit board
Methods for increasing polypeptide production
Pre-hedge rules and tools for creating pre-hedge rules
Preparation of polymeric acetal carboxylates using organoaluminum compounds
Image forming apparatus and document reading device
Print portal system on network
Graphical user interface for a display screen or portion thereof
Network for applying a plurality of control voltages to a common control terminal
Dipping apparatus