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Class Information
Number: 232/37
Name: Deposit and collection receptacles > Letter boxes > Indicators > Door-operated
Description: Indicators moved intermittently by the action of the doors. They are usually for the purpose of showing the times of the next collections.

Patents under this class:

Patent Number Title Of Patent Date Issued
8665092 Manipulation detection system for cash boxes that can be inserted in and removed from automatic teller machines Mar. 4, 2014
7843340 Mail delivery alert system Nov. 30, 2010
6788203 Mailbox and counter combination device Sep. 7, 2004
6766605 Method and apparatus for illuminating advertising and marketing metered and unmetered parcel and package smart drop boxes and receptacles Jul. 27, 2004
6028517 Status indicating system for indicating the deposit and withdrawal of items in a receptacle Feb. 22, 2000
5818336 Drop box inventory monitoring and control system Oct. 6, 1998
5520326 System for alerting mail distributors May. 28, 1996
5440294 Mail delivery signal system Aug. 8, 1995
5060854 Remote mail indicator system Oct. 29, 1991
5023595 Mail arrival signal system Jun. 11, 1991
4794377 Mail signal system Dec. 27, 1988
4633236 Mailbox Dec. 30, 1986
4520350 Mail box with remote indicator May. 28, 1985
3968928 Mail box rotatable signal Jul. 13, 1976
3951446 Car trunk litter receptacle Apr. 20, 1976

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