Public Reel

CARBON ARC PROJECTION

782. CARBON ARC PROJECTION. National Carbon Co., Inc. 1,350 feet. Summary: Shows what the carbon arc is, how it operates, and why it is the light source best fitted for motion-picture projection and production

Registration MU2939 No renewal found

Term began
1948-05-03
Claimant
National Carbbn Co., Inc
Class
MU — unpublished motion picture other than a photoplay (numbering series begun 1946)
Finding
no renewal entry found for 1975-1977 in the CCE motion-picture renewal sections
In the public domain since
1 January 1977 (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 1975 or 1976 volume; volumes searched: 1975, 1976, 1977.

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 MU2939.

Catalog entry

Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1948, Internet Archive catalogofcopyrig321213lib (OCR text), lines 2266–2278.

12Nov47; MP2 782. 


CARBON ARC PROJECTION. National 
Carbon Co., Inc. 1,350 feet. 

Summary: Shows what the carbon arc is, 
how it operates, and why it is the light 
source best fitted for motion-picture 
projection and production. 

© National Carbbn Co., Inc.; title, 
descr., & 2 prints, 3May48; MU2939. 

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