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
Vacuum cleaner filter adapter ring
Opportunistic modem
Electric power steering apparatus
Methods, systems, and physical computer storage media for processing a plurality of input/output request jobs
Method for producing organo-oligo silsesquioxanes
Community profiling for social media
Selected alert delivery in a distributed processing system
  Randomly Featured Patents
Process for information transmission in a bus system having several participants
Semiconductor memory
Hydrostatic pressure responsive bypass safety switch
Wall sconce
Pipelined digital signal processor
Chitosan derivatives combined with polypropylene glycol and method for preparing the same
Display screen with transitional graphical user interface
Message delivery system and method therefor
Start winding for solenoidal electric field discharge lamps
Single chain antibody against mutant p53