US3842831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellular skin patch
Assignee: GENETIC LABOR Inc
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Filing: 1973-08-06
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Granted: 1974-10-22
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Expires: 1993-08-06
Abstract
Abstract A method and means for preparing large cellular skin patches for preservation for cryogenic storage and subsequent thawing which comprises applying a woven scrim to one side of a large patch of cellular skin, with the scrim having a generally open and reticulate pattern of less than about 64 openings per square inch, and thereafter freezing the skin patch for cryogenic preservation. Large cellular skin patches are normally stored by rolling the patch prior to freezing, and for thawing, the fluid being used gains ingress to the zones between adjacent rolled layers through the reticulate pattern of the interposed scrim.
Inventors
- 👤 A Beisang
- 👤 R Ersek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:18
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/322; A61B18/00; A61B18/02; A61B18/0218; A61L; A61L2/00; A61L2/02; Y; Y10; Y10S; Y10S623/00; Y10S623/92
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
54 words
CELLULAR SKIN PATCHES ARRANGED FOR CRYOGENIC STORAGE AND COMPRISING: A. A SKIN PATCH CONSISTING OF AN INTEGRAL COHESIVE NATURAL CELLULAR SKIN LAYER HAVING SUBSTANTIAL LENGTH AND WIDTH DIMENSIONS; AND B. SCRIM MEANS SECURED TO ONE SURFACE THEREOF AND COMPRISING A GENERALLY LOOSE WOVEN THREAD SCRIM HAVING LESS THAN ABOUT 64 OPENINGS PER SQUARE INCH.
Claim 2
Dependent Claim
54 words
CELLULAR SKIN PATCHES ARRANGED FOR CRYOGENIC STORAGE AND COMPRISING: A. A SKIN PATCH CONSISTING OF AN INTEGRAL COHESIVE NATURAL CELLULAR SKIN LAYER HAVING SUBSTANTIAL LENGTH AND WIDTH DIMENSIONS; AND B. SCRIM MEANS SECURED TO ONE SURFACE THEREOF AND COMPRISING A GENERALLY LOOSE WOVEN THREAD SCRIM HAVING LESS THAN ABOUT 64 OPENINGS PER SQUARE INCH.
Claim 3
Dependent Claim
34 words
The cellular skin patch as defined in claim 1 being particularly characterized in that said scrim is fabricated from fibers consisting of synthetic resin selected from the group consisting of nylon and polyethylene terephthalate.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |