NUCLEAR RADIATION: USES IN EARTH STUDIES
NUCLEAR RADIATION: USES IN EARTH STUDIES. Cenco Educational Films. 15 min., sd., color, 16 mm
Registration MP12298 No renewal found
- Term began
- 1962-01-18
- Claimant
- Cenco Educational Films, div. of Cenco Instruments Corp
- Class
- MP — published motion picture other than a photoplay (numbering series begun Jan. 1950)
- Finding
- no renewal entry found for 1989-1991 or in the Copyright Office renewal records 1978-2025
- In the public domain since
- 1 January 1991 (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 1989 or 1990 volume; volumes searched: 1989, 1990, 1991.
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 MP12298.
Catalog entry
Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1962, Internet Archive catalogofcopyr3161213libr (OCR text), lines 9919–9928.
NUCLEAR RADIATION: USES IN EARTH STUDIES. Cenco Educational Films. 15 min., sd., color, 16 mm. © Cenco Educational Films, div. of Cenco Instruments Corp.; 18Jan62 (in notice: 1961); MP12298.
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