VINETHENE IN DENTAL ANESTHESIA
open-drop and semi-closed inhalation methods; compares the pharmacologic action of Vinethene and ethyl chloride in animal experiments; includes live-sound photographic recordings of the use of Vinethene during simple dental extractions. For dentists. Credits: Supervisor, E. A. Rovenstine. Kodachrome
Registration MP3430 No renewal found
- Term began
- 1953-03-23
- Claimant
- Merck & Co., inc
- Class
- MP — published motion picture other than a photoplay (numbering series begun Jan. 1950)
- Finding
- no renewal entry found for 1980-1982 or in the Copyright Office renewal records 1978-2025
- In the public domain since
- 1 January 1982 (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 1980 or 1981 volume; volumes searched: 1980, 1981, 1982.
Catalog entry
Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1953, Internet Archive catalogofcopyrig371213lib (OCR text), lines 22954–22966.
ministering by open-drop and semi-closed inhalation methods; compares the pharma- cologic action of Vinethene and ethyl chloride in animal experiments; includes live-sound photographic recordings of the use of Vinethene during simple dental extractions. For dentists. Credits: Supervisor, E. A. Rovenstine. Kodachrome. © Merck & Co., inc.; 23Mar53 (in notice: 1952); MP3430.
Copies on the Internet Archive
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