MACHINES
1 reel each, COMMUTATION OF D.C. MACHINES. 3 reels.
Registration MP336 No renewal found
- Term began
- 1946-03-19
- Claimant
- Westinghouse Electric and Manufacturing Co.
- Class
- MP — published motion picture other than a photoplay (numbering series begun 1946)
- Finding
- no renewal entry found for 1973-1975 in the CCE motion-picture renewal sections
- In the public domain since
- 1 January 1975 (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 1973 or 1974 volume; volumes searched: 1973, 1974, 1975.
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 MP336.
Catalog entry
Catalog of Copyright Entries, New Series, Part 1 Group 3: Dramatic Compositions, Motion Pictures, 1946, Internet Archive catalogofcopyrig191libr (OCR text), lines 69057–69066.
1 reel each, COMMUTATION OF D.C. MACHINES. 3 reels. © 3-19-46; 2c 3-29-46, descr.; Westinghouse Electric and Manufacturing Co., author and claimant, Pittsburgh; M 336, COMPRESSION MOLDING. PREPARING THE
Copies on the Internet Archive
Not searched yet.