Public Reel

WAVES AND ENERGY

WAVES AND ENERGY. Encyclopaedia Britannica Films. 11 min., sd., color, 16 mm. (Science for the Space age: basic physical science series)

Registration MP12009 Renewed

Term began
1961-08-15
Claimant
Encyclopaedia Britannica Films, Inc
Class
MP — published motion picture other than a photoplay (numbering series begun Jan. 1950)
Finding
renewal RE454249 filed 1989-12-27 by Encyclopaedia Britannica Educational Corporation (number+date; Copyright Office public records dataset, record 7349672)
Enters the public domain
1 January 2057 (95 years from the 1961 publication)

A renewal registration for this work was found. The renewed term lasts 95 years from the original date, so the work remains under copyright.

Renewal RE454249 (link: number+date, title similarity 1.00)

Renewal claimant
Encyclopaedia Britannica Educational Corporation (PWH)
Renewal date
1989-12-27
Original cited
MP12009 / 1961-08-15
Source
U.S. Copyright Office public records dataset (renewals registered 1978–2025, January 2026 release), control number 7349672: record in the Copyright Public Records System

Structured record, not OCR: renewal number RE454249, registered 1989-12-27, for original registration MP12009 published 1961-08-15.

Catalog entry

Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1962, Internet Archive catalogofcopyr3161213libr (OCR text), lines 14071–14076.

WAVES AND ENERGY. Encyclopaedia 
Britannica Films. 11 min., sd., 
color, 16 mm. (Science for the 
Space age: basic physical science 
series) © Encyclopaedia Britannica 
Films, Inc.; 15Aug61; MP12009. 

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