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James R. Roberts and Heber C. Roach received US Patent No. 3,682,667 on August 8, 1972, filed June 18, 1970. It was assigned to United States Gypsum Co.
The patent's abstract:
IMPROVED THERMAL-INSULATING MATERIAL IS MADE FROM AN ORGANIC BINDER, MINERAL WOOL, ASBESTOS FIBER, CLAY AND A WAX-SHAPED EMULSION.
- Author
- James R. Roberts; Heber C. Roach
- Published by
- US Patent Office
- Series
- US Patent No. 3,682,667
- Date
- August 8, 1972
- Library no.
- ACL Doc 22698 · asbestosclaims.law/library/22698
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, February 1973, in its patents department (the year's issues)
Cited on this site
Cite this document
James R. Roberts, Heber C. Roach. “High temperature insulation block (US Patent 3,682,667, 1972).” August 8, 1972. US Patent No. 3,682,667. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22698. https://asbestosclaims.law/library/22698.
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