HOW TO CHANGE FRACTIONS
nson Hunt Productions, 1947, 11 min., sd., color, 16mm. Summary: With the aid of animation, this film analyzes methods of finding equal fractions and explains the meaning of equality with reference to fractions, Fourth is a series of eight motion pictures on fractions for the upper elementary grades
Registration MP2671 No renewal found
- Term began
- 1947-12-20
- Claimant
- Johnson Hunt Productions
- Class
- MP — published motion picture other than a photoplay (numbering series begun 1946)
- Finding
- no renewal entry found for 1974-1976 in the CCE motion-picture renewal sections
- In the public domain since
- 1 January 1976 (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 1974 or 1975 volume; volumes searched: 1974, 1975, 1976.
Catalog entry
Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1948, Internet Archive catalogofcopyrig321213lib (OCR text), lines 4966–4981.
HOW TO CHANGE FRACTIONS. Johnson Hunt Productions, 1947, 11 min., sd., color, 16mm. Summary: With the aid of animation, this film analyzes methods of finding equal fractions and explains the meaning of equality with reference to fractions, Fourth is a series of eight motion pic- tures on fractions for the upper elementary grades. © Johnson Hunt Productions; 20Dec47; MP2671.
Copies on the Internet Archive
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