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Willard R. Seipt received US Patent No. 2,800,415 on July 23, 1957, filed June 10, 1954.
The patent's description opens (from the scanned text):
This invention relates to the manufacture of magnesia insulation of the type known to the trade as 85% magnesia.
- Author
- Willard R. Seipt
- Published by
- US Patent Office
- Series
- US Patent No. 2,800,415
- Date
- July 23, 1957
- Library no.
- ACL Doc 21836 · asbestosclaims.law/library/21836
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 6 pages · 562 KB
Where it was listed
- Asbestos, September 1957, in its patents department (the year's issues)
- Barry Castleman, Asbestos: Medical and Legal Aspects (5th edition, 2005)
Cited by Barry Castleman
In Asbestos: Medical and Legal Aspects (5th edition, 2005), which cites it in:
- Chapter 6 (Alternatives to Asbestos Insulation), p. 374, note 21
Cited on this site
Cite this document
Willard R. Seipt. “Asphaltic magnesia composition and method of producing the same (US Patent 2,800,415, 1957).” July 23, 1957. US Patent No. 2,800,415. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21836. https://asbestosclaims.law/library/21836.
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