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Robbie T. Foster received US Patent No. 3,939,055 on February 17, 1976, filed October 3, 1973. It was assigned to PPG Industries Inc.
The patent's abstract:
Disclosed is a method of preparing an asbestos diaphragm where alkali metal ions are provided within the fibrous asbestos diaphragm, the diaphragm is heated to form an alkali metal silicate layer on the asbestos fibers, and thereafter a further layer of asbestos is deposited on the diaphragm.
- Author
- Robbie T. Foster
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 3,939,055
- Date
- February 17, 1976
- Library no.
- ACL Doc 22852 · asbestosclaims.law/library/22852
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 553 KB
Where it was listed
- Asbestos, June 1976, in its patents department (the year's issues)
Cited on this site
Cite this document
Robbie T. Foster. “Laminated asbestos diaphragm (US Patent 3,939,055, 1976).” February 17, 1976. US Patent No. 3,939,055. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 22852. https://asbestosclaims.law/library/22852.
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