US3961045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating ulcer
Assignee: Ingredion Inc
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Filing: 1975-03-17
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Granted: 1976-06-01
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Expires: 1995-03-17
Abstract
Abstract Water-soluble homo-and co-polymers of styrene and salts thereof having a degree of substitution from about 0.7 to about 1.3 sulfonate groups per unit of styrene are useful for treating gastric or duodenal ulcers.
Inventors
- 👤 Otto B. Wurzburg
- 👤 Chester D. Szymanski
- 👤 Leo Kruger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:49
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/74; A61K31/795
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A method for treating gastric or duodenal ulcers in humans in need of such treatment comprising administering orally thereto an effective amount within the range of from 0.020 to 1.000 grams of a water-soluble polymer selected from the group consisting of sulfonated homo- and copolymers of styrene and salts thereof having a degree of substitution from about 0.7 to about 1.3 sulfonate groups per unit of styrene and an average molecular weight within the range of 600 to 7,000,000.
Claim 2
Independent Claim
79 words
A method for treating gastric or duodenal ulcers in humans in need of such treatment comprising administering orally thereto an effective amount within the range of from 0.020 to 1.000 grams of a water-soluble polymer selected from the group consisting of sulfonated homo- and copolymers of styrene and salts thereof having a degree of substitution from about 0.7 to about 1.3 sulfonate groups per unit of styrene and an average molecular weight within the range of 600 to 7,000,000.
References Cited (Backward Citations)
GB659211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |