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Robert W. Sterrett received US Patent No. 3,503,841 on March 31, 1970, filed May 13, 1966. It was assigned to WR Grace and Co.
The patent's description opens:
This invention relates to light weight sandwich structures containing foamed or cellular plastic core material.
- Author
- Robert W. Sterrett
- Published by
- US Patent Office
- Series
- US Patent No. 3,503,841
- Date
- March 31, 1970
- Library no.
- ACL Doc 22362 · asbestosclaims.law/library/22362
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 489 KB
Where it was listed
- Asbestos, May 1970, in its patents department (the year's issues)
Cite this document
Robert W. Sterrett. “Foamed polystyrene bonded to fiber filled polyvinyl chloride sheet (US Patent 3,503,841, 1970).” March 31, 1970. US Patent No. 3,503,841. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22362. https://asbestosclaims.law/library/22362.
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