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Charles A. Sauber and Francis J. Shell received US Patent No. 3,253,664 on May 31, 1966, filed December 31, 1962. It was assigned to Phillips Petroleum Co.
The patent's description opens:
This invention relates to a method and a composition for sealing porous formations, particularly porous formations in the earth encountered in the drilling of a well.
- Author
- Charles A. Sauber; Francis J. Shell
- Published by
- US Patent Office
- Series
- US Patent No. 3,253,664
- Date
- May 31, 1966
- Library no.
- ACL Doc 23615 · asbestosclaims.law/library/23615
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 332 KB
Where it was listed
- Asbestos, July 1966, in its patents department (the year's issues)
Cited on this site
Cite this document
Charles A. Sauber, Francis J. Shell. “Sealing porous formations (US Patent 3,253,664, 1966).” May 31, 1966. US Patent No. 3,253,664. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23615. https://asbestosclaims.law/library/23615.
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