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Robert A. Hatch and James R. Johnson received US Patent No. 3,916,057 on October 28, 1975, filed August 31, 1973. It was assigned to Minnesota Mining and Manufacturing Co.
The patent's abstract:
An intumescent sheet material is provided containing vermiculite or other expandable mica. A process for mounting catalyst supports is described.
- Author
- Robert A. Hatch; James R. Johnson
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 3,916,057
- Date
- October 28, 1975
- Library no.
- ACL Doc 22840 · asbestosclaims.law/library/22840
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, December 1975, in its patents department (the year's issues)
Cited on this site
Cite this document
Robert A. Hatch, James R. Johnson. “Intumescent sheet material (US Patent 3,916,057, 1975).” October 28, 1975. US Patent No. 3,916,057. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 22840. https://asbestosclaims.law/library/22840.
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