Foamed rubber erasers and process for the production thereof

United States of America Patent

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Dec 4, 1984
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N/A
app pub date
Nov 3, 1980
filing date
Nov 3, 1979

priority date (Note)
Expired

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Abstract

Uniformly porous foamed erasers and process for the production thereof, the process comprising continuously mixing air or other gas into a flowable plasticized mixture and gelling the mixture by introducing the same continuously to a heating mean.

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Patent Owner(s)

FIRMA J.S.;FIRMA J. S. STAEDTLER

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Englbrecht, Rupert	Burghausen, DE	1	3
Handl, Werner	Altdorf, DE	18	49

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Foamed rubber erasers and process for the production thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

06203359

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PATENT NO	4485520
SERIAL NO	06203359
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06203359

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