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Rubin Lewon and George P. Lechich received US Patent No. 2,483,498 on October 4, 1949, filed October 31, 1947.
The patent's description opens (from the scanned text):
Our invention relates to shaped or molded calcareous-silicious insulating material, and more particularly to an improved method of making such material.
- Author
- Rubin Lewon; George P. Lechich
- Published by
- US Patent Office
- Series
- US Patent No. 2,483,498
- Date
- October 4, 1949
- Library no.
- ACL Doc 21986 · asbestosclaims.law/library/21986
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 8 pages · 1.0 MB
Where it was listed
- Asbestos, November 1949, 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. 379, note 64
Cited on this site
Cite this document
Rubin Lewon, George P. Lechich. “Calcareous Silicious Insulating Material, Method of Making (US Patent 2,483,498, 1949).” October 4, 1949. US Patent No. 2,483,498. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21986. https://asbestosclaims.law/library/21986.
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