AMPLIFICATION

ENGINEERING. ELECTRONICS. 1 reel each. Produced under the direction of the U, S. Office of Education. © Loucks and Norling Studios, author and claimant, New York, THE TRIODE — AMPLIFICATION.

Registration MP367 No renewal found

Term began: 1945-06-01
Claimant: 2c 4-3-46, synopsis
Class: MP — published motion picture other than a photoplay (numbering series begun 1946)
Finding: no renewal entry found for 1972-1974 in the CCE motion-picture renewal sections
In the public domain since: 1 January 1974 (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 1972 or 1973 volume; volumes searched: 1972, 1973, 1974.

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 MP367.

Catalog entry

Catalog of Copyright Entries, New Series, Part 1 Group 3: Dramatic Compositions, Motion Pictures, 1946, Internet Archive catalogofcopyrig191libr (OCR text), lines 70770–70781.

ENGINEERING. ELECTRONICS. 1 reel each. 
Produced under the direction of the U, S. Office 
of Education. 
© Loucks and Norling Studios, author and claim- 
ant, New York, 


THE TRIODE — AMPLIFICATION. 
© 6-1-45; 2c 4-3-46, synopsis; M 367. 


=i

Copies on the Internet Archive

Not searched yet.

Search the Internet Archive yourself · JSON