Patent US1950578A successfully refreshed from Google Patents.
US3580725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separating and recovering bone and collagen from animal byproducts
Assignee: Individual
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Filing: 1968-04-03
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Granted: 1971-05-25
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Expires: 1988-04-03
Abstract
Abstract METHOD FOR SEPARATING BONE (AND COLLAGEN) FROM PARTIALLY HYDROLYZED ANIMAL TISSUE BY EMPLOYING AN AQUEOUS HYDROLYZING SOLUTION WHEREIN, BECAUSE OF THE SPECIFIC GRAVITY DIFFERENTIAL BETWEEN THE BONE (AND COLLAGEN) AND THE FLESHY TISSUE, THE FLESHY TISSUE WILL AT LEAST TEMPORARILY FLOAT IN THE SOLUTION WHILE THE BONE (AND COLLAGEN) WILL SINK. AS A RESULT, THE BONE (AND COLLAGEN) ARE SEPARATED FROM THE FLESHY TISSUE BY PASSING THE SOLUTION ALONG AN ELONGATED PATH WHERE THE BONE (AND COLLAGEN) SETTLE OUT OF THE SOLUTION.
Inventors
- 👤 William Kuster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:59
CPC Classifications
A; A22; A22C; A22C17/00; A22C17/04; A23; A23J; A23J1/00; A23J1/10; A23K; A23K10/00; A23K10/20; A23K10/26; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/84; Y10S530/859
Claims Analysis
Total Claims: 0
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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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |