Composite plastic with laser altered internal material properties

United States of America Patent

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Apr 18, 1989
Issued Date
N/A
app pub date
Sep 28, 1987
filing date
Mar 30, 1984

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Expired

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Abstract

An identification mark which remains permanently readable is applied by means of a laser beam through a lightwave window of plastics material to a plastics layer situated behind that window.

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Patent Owner(s)

BAYER AKTIENGESELLSCHAFT

International Classification(s)

B23K:SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLA....

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Depcik, Hans-Werner	Duesseldorf, DE	7	159
Fahner, Karsten	Winnenden-Birkmannsweiler, DE	3	79

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Composite plastic with laser altered internal material properties

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07079515

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PATENT NO	4822973
SERIAL NO	07079515
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07079515

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