Automatic door for pets

Details Automatic door for pets Automatic door for pets

1980-05-08

1982-04-06

Kannan, Philip C.

Movable or removable closures

Mounted for optional movements

One closure movable separately from or with other closure

49169, 49264, 49360, E06B 728

Patent

active

043229131

ABSTRACT:
This invention is related to an automatically opening door for pets, mounted in an opening of a building without requiring changes to the opening structure.

REFERENCES:
patent: 1888612 (1932-11-01), Anderson
patent: 2695574 (1954-11-01), Ceci
patent: 3039038 (1962-06-01), Weible
patent: 3811224 (1974-05-01), Garrison
patent: 3821865 (1974-07-01), Steinke
patent: 3878645 (1975-04-01), Porter
patent: 3938282 (1976-02-01), Goyal
patent: 4022263 (1977-05-01), Beckett et al.
patent: 4053007 (1977-10-01), Griffith

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