PHYSIOLOG- ICAL DEBRIDEMENT
LINE TRYPSIN—SELECTIVE PHYSIOLOG- ICAL DEBRIDEMENT. Jam Handy Organization for the Armour Laboratories. © 1951. 1038 ft., si., color, 16mm. Summary: A brief history of the enzyme Trypsin and its effect on debriding necrotic tissue. Describes research conducted at Ohio State University Medical School
Registration MU5357 No renewal found
- Term began
- 1951-11-21
- Claimant
- The Armour Laboratories
- Class
- MU — unpublished motion picture other than a photoplay (numbering series begun 1946)
- 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 47076–47085.
LINE TRYPSIN—SELECTIVE PHYSIOLOG- ICAL DEBRIDEMENT. Jam Handy Organ- ization for the Armour Laboratories. © 1951. 1038 ft., si., color, 16mm. Summary: A brief history of the enzyme Trypsin and its effect on debriding necrotic tissue. Describes research conducted at Ohio State University Medical School. © The Armour Laboratories; 21Nov51; MU5357.
Copies on the Internet Archive
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