US3700609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft copolymers
Assignee: Orica Ltd
•
Filing: 1971-02-01
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Granted: 1972-10-24
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Expires: 1991-02-01
Abstract
Abstract A GRAFT COPOLYMER COMPRISING A POLYMERIC BACKBONE AND SURFACE GRAFTED ON TO IT POLYMERIC SIDE-CHAINS COMPRISING A MULTIPLICITY OF MER UNITS OF THE FORMULA -CH(-(X-PHENYLENE)-Y)-CH2- WHEREIN Y IS AT LEAST ONE PROTEIN REACTIVE GROUP AND Y STANDS FOR ONE OR MORE OPTIONAL SUBSTITUENTS WHICH IS NONREACTIVE AND PROTEINS. PROCESSES OF MANUFACTURE OF THE GRAFT COPOLYMER AND ITS PROTEIN COMPLEXES ARE ALSO DESCRIBED.
Inventors
- 👤 Geoffrey W Tregear
- 👤 Hendrik A J Battaerd
- 👤 Gunter A Lang
- 👤 Kevin Catt
- 👤 Hugh D Niall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:17
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; A; A61; A61L; A61L27/00; A61L27/14; A61L27/16; C08F; C08F255/00; C08F255/02; C08F259/00; C08F259/08; C08F283/00; C08F283/04; C08F283/14; C08F291/00; C08F8/00; C08F8/04; C08F8/18; C08F8/24; C08F8/30; C08F8/32; C08F8/34; C08F8/44; C08J7/16; C08J7/18; C12; C12N; C12N11/00; C12N11/02; C12N11/08; C12N11/082; C12N11/089; C08J2351/00; Y; Y10; Y10S; Y10S436/00; Y10S436/815; Y10S436/903
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |