Deposit and collection receptacles – Letter boxes – Signals
Patent
1976-01-16
1977-01-04
Frazier, Roy D.
Deposit and collection receptacles
Letter boxes
Signals
G08C 500
Patent
active
040008479
ABSTRACT:
An elongated shape retaining flexible member having its lower end secured to the door latch of a mailbox. The opposite end of the flexible member is designed to be compressed between the mailbox door and mailbox housing when the door is closed so as to retain the elongated flexible member in a downbent position. When the mailbox door is opened the upper end of the flexible member is released so that it springs or flexes into an upright position indicating the receipt of mail.
REFERENCES:
patent: 2428423 (1947-10-01), Hurban
patent: 2433940 (1948-01-01), Weaver
patent: 3482543 (1969-12-01), Guidos
patent: 3596631 (1971-08-01), Sutton
patent: 3866823 (1975-02-01), Grayson
Aschenbrenner Peter A.
Frazier Roy D.
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