JET PROPULSION
JET PROPULSION. Encyclopaedia Britannica Films, 1952, 11 min., sd., bew, 16mm. Summary: Illustrates the physical principles on which jet propulsion is based, and describes the operation and uses of several types of jet engines. Credits: Associate producer, Hal Kopel; collaborator, John T. Rettaliata
Registration MP3238 No renewal found
- Term began
- 1952-11-24
- Claimant
- Encyclopaedia Britannica Films, inc
- Class
- MP — published motion picture other than a photoplay (numbering series begun Jan. 1950)
- 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, 1953, Internet Archive catalogofcopyrig371213lib (OCR text), lines 9755–9768.
JET PROPULSION. Encyclopaedia Britannica Films, 1952, 11 min., sd., bew, 16mm. Summary: Illustrates the physical princi- ples on which jet propulsion is based, and describes the operation and uses of several types of jet engines. Credits: Associate producer, Hal Kopel; collaborator, John T. Rettaliata. © Encyclopaedia Britannica Films, inc.; 24Novs2; MP3238.
Copies on the Internet Archive
Not searched yet.