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Kenneth J. Radimer and Frank E. Caropreso received US Patent No. 3,410,802 on November 12, 1968, filed February 21, 1966. It was assigned to Fmc Corp.
The patent's description opens:
This invention relates to the etching of copper bearing a resist pattern, and more particularly to the etching of copper with a peroxydisulfate solution which avoids undue sideways etching or undercutting of the copper relief provided by etching.
- Author
- Kenneth J. Radimer; Frank E. Caropreso
- Published by
- US Patent Office
- Series
- US Patent No. 3,410,802
- Date
- November 12, 1968
- Library no.
- ACL Doc 23416 · asbestosclaims.law/library/23416
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 379 KB
Where it was listed
- Asbestos, December 1968, in its patents department (the year's issues)
Cited on this site
Cite this document
Kenneth J. Radimer, Frank E. Caropreso. “Process and composition for etching of copper metal (US Patent 3,410,802, 1968).” November 12, 1968. US Patent No. 3,410,802. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23416. https://asbestosclaims.law/library/23416.
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