LIQUID HELIUM II, THE SUPERFLUID
IEGO, CALIFORNIA (Filmstrip) Jeppesen & Co. Made by Aviation Visual Aids. 37 fr., color, 35 mm. (A Pilot qualification film) Eastman color. © Jeppesen & Co.; 27Mar62; JP8250. LIQUID HELIUM II, THE SUPERFLUID. National Science Foundation. 39 min., sd., b&w, 16 mm. Produced & written by Alfred Leitner
Registration MP13382 No renewal found
- Term began
- 1963-04-12
- Claimant
- Alfred Leitner & Board of Trustees of Michigan State University
- Class
- MP — published motion picture other than a photoplay (numbering series begun Jan. 1950)
- Finding
- no renewal entry found for 1990-1992 or in the Copyright Office renewal records 1978-2025
- In the public domain since
- 1 January 1992 (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 1990 or 1991 volume; volumes searched: 1990, 1991, 1992.
Catalog entry
Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1963, Internet Archive catalogofcopyr3171213libr (OCR text), lines 40581–40594.
LINDBERGH FIELD, SAN DIEGO, CALIFORNIA (Filmstrip) Jeppesen & Co. Made by Aviation Visual Aids. 37 fr., color, 35 mm. (A Pilot qualifica- tion film) Eastman color. © Jeppesen & Co.; 27Mar62; JP8250. LIQUID HELIUM II, THE SUPERFLUID. National Science Foundation. 39 min., sd., b&w, 16 mm. Produced & written by Alfred Leitner. © Alfred Leitner & Board of Trustees of Michigan State University; 12Apr63; MP13382.
Copies on the Internet Archive
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