POWDER WASHING, AN OXY-ACETYLENE PROCESS FOR FINISHING ROUGH CAST- INGS
POWDER WASHING, AN OXY-ACETYLENE PROCESS FOR FINISHING ROUGH CAST- INGS. Union Carbide and Carbon Corp., 1951. 11 min., sd., color, 16mm. Summary: Explains how powder washing removes excess Surface material and is an economic method for finishing castings
Registration MP1168 No renewal found
- Term began
- 1951-04-09
- Claimant
- Union: Carbide and Carbon Corp
- Class
- MP — published motion picture other than a photoplay (numbering series begun Jan. 1950)
- Finding
- no renewal entry found for 1978-1980 or in the Copyright Office renewal records 1978-2025
- In the public domain since
- 1 January 1980 (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 1978 or 1979 volume; volumes searched: 1978, 1979, 1980.
Catalog entry
Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1951, Internet Archive catalogofcopyri351213libr (OCR text), lines 15367–15377.
POWDER WASHING, AN OXY-ACETYLENE PROCESS FOR FINISHING ROUGH CAST- INGS. Union Carbide and Carbon Corp., 1951. 11 min., sd., color, 16mm. Summary: Explains how powder washing removes excess Surface material and is an economic method for finishing castings. © Union: Carbide and Carbon Corp.; 9Apr51; MP1168. ;
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