Patent US4468378A successfully refreshed from Google Patents.
US4468378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxysulfonic derivative of copolymer of acrolein and acrylic acid and direct action anticoagulant on its basis
Assignee: Individual
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Filing: 1981-05-29
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Granted: 1984-08-28
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Expires: 2001-05-29
Abstract
Abstract According to the invention, the oxysulfonic derivative of the copolymer of acrolein and acrylic acid is of the following formula: ##STR1## where n=190 to 600, m=190 to 500, and p=830 to 850. This biologically active compound can be used as a direct and prolonged action blood antiacoagulant to be administered in the form of 1- or 2-percent solutions. The preparation according to the invention features a long shelf and has a longer action than the well-known heparin.
Inventors
- 👤 Mikhail G. Voronkov
- 👤 Ada T. Platonova
- 👤 Vladislava Z. Annenkova
- 👤 Valentina M. Annenkova
- 👤 Valentina B. Kazimirovskaya
- 👤 Galina S. Ugrjumova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:23
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/74; A61K31/765; A61K31/78; Y; Y10; Y10S; Y10S128/00; Y10S128/22
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
38 words
A direct and prolonged action low toxicity anticoagulant of blood, comprising an active principle which is an oxysulfonate derivative of the copolymer of acrolein and acrylic acid of the formula: and a liquid carrier for said active principle.
Claim 2
Dependent Claim
38 words
A direct and prolonged action low toxicity anticoagulant of blood, comprising an active principle which is an oxysulfonate derivative of the copolymer of acrolein and acrylic acid of the formula: and a liquid carrier for said active principle.
Claim 3
Dependent Claim
21 words
An anticoagulant of blood as claimed in claim 1, wherein the active principle content is 1 to 2 percent by weight.
References Cited (Backward Citations)
US3129195A
Cited
EP0010621A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |