REINFORCEMENT IN LEARNING AND EXTINCTION
REINFORCEMENT IN LEARNING AND EXTINCTION. Herbert Kerkow, Inc. Released by McGraw-Hill Book Co. 8 min., sd., b&w, 16 mm. (Psychology series)
Registration MP7510 No renewal found
- Term began
- 1956-08-15
- Claimant
- McGraw-Hill Book Co., Ince
- Class
- MP — published motion picture other than a photoplay (numbering series begun Jan. 1950)
- Finding
- no renewal entry found for 1983-1985 or in the Copyright Office renewal records 1978-2025
- In the public domain since
- 1 January 1985 (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 1983 or 1984 volume; volumes searched: 1983, 1984, 1985.
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 MP7510.
Catalog entry
Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1956, Internet Archive catalogofcopyrig3101213li (OCR text), lines 39029–39036.
REINFORCEMENT IN LEARNING AND EXTINCTION. Herbert Kerkow, Inc. Released by McGraw-Hill Book Co. 8 min., sd., b&w, 16 mm. (Psychology series) © McGraw-Hill Book Co., Ince; 15Aug56; MP7510.
Copies on the Internet Archive
Not searched yet.