Device for heating dyes to tint optical lenses and filters

Details Device for heating dyes to tint optical lenses and filters Device for heating dyes to tint optical lenses and filters

2005-05-24

2005-05-24

Pelham, Joseph (Department: 3742)

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

C219S432000, C219S433000, C264S001320, C008S506000

Reexamination Certificate

active

06897413

ABSTRACT:
A device that utilizes an improved method to heat dyes to color plastic lenses and filters.

REFERENCES:
patent: 111476 (1871-01-01), Ronning
patent: 2236837 (1941-04-01), Rimmel
patent: 2551651 (1951-05-01), Vandewater
patent: 3892945 (1975-07-01), Lerner
patent: 4256697 (1981-03-01), Baldwin
patent: 5052337 (1991-10-01), Talcott et al.
patent: 5549543 (1996-08-01), Kim
patent: 6216360 (2001-04-01), Wertheim
patent: 6417498 (2002-07-01), Shields et al.
patent: 06175082 (1994-06-01), None

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