CORROSION IN ACTION
2, Origins and Characteristics of Corrosion Currents. 1000 ft
Registration MU5379 (part 2: Origins and Characteristics of Corrosion Currents) No renewal found
- Term began
- 1952-04-02
- Claimant
- —
- Class
- MU — unpublished motion picture other than a photoplay (numbering series begun 1946)
- Finding
- no renewal entry found for 1979-1981 or in the Copyright Office renewal records 1978-2025
- In the public domain since
- 1 January 1981 (end of the 28th year, no renewal)
A renewal would have appeared in the Copyright Office's renewal registrations 27 to 29 years after the term began. Those volumes are loaded and no matching renewal was found. A work published 1931–1963 that was not renewed entered the public domain at the end of its 28th year.
A renewal had to be filed in the 28th year and would be listed in the 1979 or 1980 volume; volumes searched: 1979, 1980, 1981.
The renewal sections are OCR text of printed volumes; a damaged record can hide a renewal. Before relying on this, search the linked volumes yourself for the title and for number MU5379.
Catalog entry
Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1952, Internet Archive catalogofcopyrig361213lib (OCR text), lines 3766–3768.
2, Origins and Characteristics of Corro- sion Currents. 1000 ft. © 2Aprs2; MU5379.
Copies on the Internet Archive
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