Patent US5606019A successfully refreshed from Google Patents.
US5606019A
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Synthetic protein as implantables
Assignee: Protein Polymer Technologies Inc
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Filing: 1994-03-11
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Granted: 1997-02-25
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Expires: 2014-03-11
Abstract
Abstract Copolymers are provided having varying ratios of elastin and fibroin repeating units. By varying the length of segments of the elastin and fibroin repeating units, the absorption can be greatly varied. Tensile strengths remain relatively constant regardless of the composition within the prescribed ranges. The copolymer compositions and recombinant fibroin can be used for the production of a wide variety of formed objects and amorphous masses for use as implants.
Inventors
- 👤 Joseph Cappello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:46
CPC Classifications
D; D01; D01F; D01F4/00; A; A61; A61L; A61L17/00; A61L17/06; A61L17/10; A61L27/00; A61L27/14; A61L27/22; A61L27/227; A61L31/00; A61L31/04; A61L31/043; A61L31/047; C; C07; C07K; C07K14/00; C07K14/435; C07K14/78; C08; C08J; C08J5/00; C08J5/18; C12; C12N; C12N15/00; C12N15/09; C12N15/11; A61K; A61K38/00; C07K2319/00; C07K2319/01; C07K2319/02; C07K2319/61; C08J2389/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
50 words
A protein polymer of at least 15 kD and comprising alternating blocks of two units each of VPGVG (SEQ ID NO: 02) and GAGAGS (SEG ID NO: 01), wherein at least 15 to 80% of amino acids of said alternating blocks of said protein polymer are present as GAGAGS units.
Claim 2
Dependent Claim
50 words
A protein polymer of at least 15 kD and comprising alternating blocks of two units each of VPGVG (SEQ ID NO: 02) and GAGAGS (SEG ID NO: 01), wherein at least 15 to 80% of amino acids of said alternating blocks of said protein polymer are present as GAGAGS units.
Claim 3
Dependent Claim
33 words
A protein polymer according to claim 1, wherein blocks of VPGVG (SEQ ID NO:02) have from two to thirty-two units and blocks of GAGAGS (SEQ ID NO:02) have from two to twelve units.
Claim 4
Dependent Claim
21 words
A protein polymer according to claim 2, wherein said blocks of VPGVG (SEQ ID NO:02) have from eight to twenty units.
Claim 5
Dependent Claim
34 words
A protein polymer according to claim 1, wherein said protein polymer has blocks of VPGVG (SEQ ID NO:02) and GAGAGS (SEQ ID NO:01) with unit ratios of: 8:2; 8:4; 8:6; 12:8; 16:8; and 32:8.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-02-25 | 2000-08-26 | 2001-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-25 | 2004-08-26 | 2005-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-25 | 2008-08-26 | 2009-02-25 | $7700.00 | Window Closed / Lapsed |