MAMMALIAN RESPIRATORY EPITHELIUM
RY EPITHELIUM. South Shore Analytical and Research Laboratory [1952] 466 ft., b&w. Summary: Studies on mammalian ciliated respiratory epithelium with particular reference to the effect of menthol, nicotine, and the smoke of mentholated and non-mentholated cigarettes. Credits: Author, Nathan Rakieten
Registration MU5472 No renewal found
- Term began
- 1952-07-18
- Claimant
- South Shore Analytical and Research Laboratory, Inc
- 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- MU — unpublished motion picture other than a photoplay (numbering series begun 1946)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.
Catalog entry
Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1952, Internet Archive catalogofcopyrig361213lib (OCR text), lines 44161–44174.
MAMMALIAN RESPIRATORY EPITHELIUM. South Shore Analytical and Research Labora- tory [1952] 466 ft., b&w. Summary: Studies on mammalian ciliated respiratory epithelium with particular refer- ence to the effect of menthol, nicotine, and the smoke of mentholated and non-mentho- lated cigarettes. Credits: Author, Nathan Rakieten. © South Shore Analytical and Research Laboratory, Inc.; 18Jul52; MU5472.
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