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Mitsuo Uchida, Takeshi Fushiki and Mitsuru Awata received US Patent No. 4,127,628 on November 28, 1978, filed April 19, 1977. It was assigned to Mitsubishi Chemical Industries Ltd.
The patent's abstract:
A molded gypsum product comprises a matrix of crystalline gypsum and reinforcing fibers of glass fiber and asbestos fiber uniformly distributed in said matrix in a multi-layer structure having at least one higher density layer and at least one lower density layer which is continuously adjacent to said higher density layer and having an average apparent bulk density of 0.3 to 0.9 g/cc.
- Author
- Mitsuo Uchida; Takeshi Fushiki; Mitsuru Awata
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 4,127,628
- Date
- November 28, 1978
- Library no.
- ACL Doc 23207 · asbestosclaims.law/library/23207
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, April 1979, in its patents department (the year's issues)
Cited on this site
Cite this document
Mitsuo Uchida, Takeshi Fushiki, Mitsuru Awata. “Molded gypsum product and process for preparing the same (US Patent 4,127,628, 1978).” November 28, 1978. US Patent No. 4,127,628. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 23207. https://asbestosclaims.law/library/23207.
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