US PATENT SUBCLASS 340 / 545.6
.~.~.~.~ Door, cover, or lid for self-contained article (e.g., refrigerator, mailbox, drawer, cabinet, or box)

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
541  DF  .~.~ Intrusion detection {8}
545.1  DF  .~.~.~ Door or window movement {6}
545.6.~.~.~.~ Door, cover, or lid for self-contained article (e.g., refrigerator, mailbox, drawer, cabinet, or box)

DEFINITION

Classification: 340/545.6

Door, cover, or lid for self-contained article (e.g., refrigerator, mailbox, drawer, cabinet, or box):

(under subclass 545.1) Subject matter wherein the door or window is part of a structure other than a building or room.

SEE OR SEARCH THIS CLASS, SUBCLASS:

569, for an indicator responsive to an article placement or removal from a mail box.

570, for an indicator responsive to an article placement or removal from a drawer.

SEE OR SEARCH CLASS

232, Deposit and Collection Receptacles,

35, 37 for letter box door-operated signals and indicators without intrusion detection purpose.