US3679795A
Expired / Lapsed
US
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Antiinfectious compositions and process for their preparation
Assignee: RECHERCHE ET IND THERAPEUTIQUES RIT
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Filing: 1970-06-04
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Granted: 1972-07-25
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Expires: 1990-06-04
Abstract
Abstract The invention relates to the preparation of antiviral polyacetalcarboxylic acids and to the physiologically acceptable salts thereof, said polyacetalcarboxylic acids being oxidized polysaccharides having at least 50 percent of the monosaccharide rings open, substantially all the open rings oxidized to the carboxylic acid state and substantially all the C-O-C linkages originally present in the original polysaccharide still intact.
Inventors
- 👤 Pierre De Somer
- 👤 Paul Claes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:15
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; A61K31/715; C; C07; C07C; C07C59/00; C07C59/235; C07C59/305; C07C59/31; C08; C08B; C08B15/00; C08B15/02; C08B15/04; C08B31/00; C08B31/18; C08B33/00; C08B33/08; C08B37/00; Y; Y02; Y02A; Y02A50/00; Y02A50/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
12 words
A method according to claim 1 wherein the oxidized compound is amylopectin.
Claim 2
Dependent Claim
12 words
A method according to claim 1 wherein the oxidized compound is cellulose.
Claim 3
Dependent Claim
13 words
A method according to claim 1 wherein the oxidized compound is alginic acid.
Claim 4
Dependent Claim
12 words
A method according to claim 1 wherein the oxidized compound is dextran.
Claim 5
Dependent Claim
12 words
A method according to claim 1 wherein the oxidized compound is amylose.
Claim 6
Dependent Claim
14 words
A method as claimed in claim 6, in which the viral infection is influenza.
Claim 7
Dependent Claim
21 words
An antiinfectious composition comprising from 100 to 500 mg. of a compound as defined in claim 1 plus a pharmaceutical carrier.
Claim 8
Dependent Claim
12 words
A composition according to claim 8 wherein the compound is oxidized amylose.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |