Structure with etchable metal

Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture

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428131, 428138, 428457, 428213, 428913, 428596, 219730, 219728, 426107, 426234, 426243, 99DIG14, H05B 680, B32B 324

Patent

active

056724071

ABSTRACT:
A self-supporting layer of flexible etchable metal having a thickness of about 1 micron has a plurality of apertures formed therethrough and has a layer of etchant resistant material on each face of the metal layer in a pattern completely overlying the metal layer and the periphery of the plurality of apertures.

REFERENCES:
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patent: 4136026 (1979-01-01), Meyer et al.
patent: 4398994 (1983-08-01), Beckett
patent: 4552614 (1985-11-01), Beckett
patent: 4689114 (1987-08-01), Ohtake et al.
patent: 4869778 (1989-09-01), Cots
patent: 4927991 (1990-05-01), Wendt et al.
patent: 5095764 (1992-03-01), Saner
patent: 5117078 (1992-05-01), Beckett
patent: 5213902 (1993-05-01), Beckett
patent: 5266386 (1993-11-01), Beckett
patent: 5340436 (1994-08-01), Beckett
"Aluminum Anodizer Regenerates Caustic Etch Solution" in Plating and Surface Finishing, Apr. 1984 by Deyat.

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