US2631942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of forming fibers from collagen
Assignee: United Shoe Machinery Corp
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Filing: 1951-05-01
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Granted: 1953-03-17
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Expires: 1971-05-01
Abstract
No abstract record available.
Inventors
- 👤 John H Highberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:31
CPC Classifications
D; D01; D01F; D01F4/00; C; C08; C08L; C08L89/00; C08L89/04; C08L89/06; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/83
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
THE PROCESS OF PRODUCING FIBERS COMPRISING ADDITION OF MUCOPROTEIN FROM BLOOD TO AN AQUEOUS SOLUTION OF ACID-SOLUBLE COLLAGEN AND PRECIPITATION OF THE PRODUCT BY DIALYSIS AGAINST WATER.
Claim 2
Dependent Claim
27 words
THE PROCESS OF PRODUCING FIBERS COMPRISING ADDITION OF MUCOPROTEIN FROM BLOOD TO AN AQUEOUS SOLUTION OF ACID-SOLUBLE COLLAGEN AND PRECIPITATION OF THE PRODUCT BY DIALYSIS AGAINST WATER.
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) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |