US3383281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for binding bile acids in vivo
Assignee: Merck and Co Inc
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Filing: 1961-09-22
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Granted: 1968-05-14
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Expires: 1981-09-22
Abstract
No abstract record available.
Inventors
- 👤 Frank J Wolf
- 👤 David M Tennent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:48
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/74; A61K31/785
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF BINDING BILE ACIDS IN TH DIGESTIVE TRACT INTO AN UNABSORBABLE FORM WHICH COMPRISES ADMINISTERING ORALLY TO MAMMALS AND BIRDS 0.5 TO 250 GRAMS PER DAY OF A WATER INSOLUBLE NON-TOXIC POLYMERIC AMINE HAVING A MOLEUCLAR WEIGHT IN EXCESS OF 3,000, HAVING THE PROPERTY OF BINDING AT LEAST 30% OF THE AVAILABLE GLYCOCHOLIC ACID WITHIN 5 MINUTES WHEN EXPOSED TO AN AQUEOUS SOLUTION OF AN EQUAL WEIGHT OF SAID ACID, HAVING A POLYMER SKELETON INERT TO DIGESTIVE ENZYMES, AND HAVING A WATER CONTENT GREATER THAN 65% AFTER EQUILIBRATION WITH AIR AT 100% RELATIVE HUMIDITY.
Claim 2
Independent Claim
96 words
THE METHOD OF BINDING BILE ACIDS IN TH DIGESTIVE TRACT INTO AN UNABSORBABLE FORM WHICH COMPRISES ADMINISTERING ORALLY TO MAMMALS AND BIRDS 0.5 TO 250 GRAMS PER DAY OF A WATER INSOLUBLE NON-TOXIC POLYMERIC AMINE HAVING A MOLEUCLAR WEIGHT IN EXCESS OF 3,000, HAVING THE PROPERTY OF BINDING AT LEAST 30% OF THE AVAILABLE GLYCOCHOLIC ACID WITHIN 5 MINUTES WHEN EXPOSED TO AN AQUEOUS SOLUTION OF AN EQUAL WEIGHT OF SAID ACID, HAVING A POLYMER SKELETON INERT TO DIGESTIVE ENZYMES, AND HAVING A WATER CONTENT GREATER THAN 65% AFTER EQUILIBRATION WITH AIR AT 100% RELATIVE HUMIDITY.
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |