US2854381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin laxative tablets containing hydrolyzed keratin
Assignee: Bristol Myers Co
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Filing: 1955-12-08
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Granted: 1958-09-30
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Expires: 1975-12-08
Abstract
No abstract record available.
Inventors
- 👤 Kuna Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:57
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/02; A; A61; A61K; A61K31/00; A61K31/74; A61K31/765; A61K31/78; A61K9/00; A61K9/20; A61K9/2004; A61K9/2022; A61K9/2063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A BULK LAXATIVE COMPOSITION IN TABLET FORM COMPRISING A COLLOIDALLY WATER-SOLUBLE POLYMER OF ACRYLIC ACID CROSS-LINKED WITH AN ALLYLATED POLYHYDROXY COMPOUND, SAID POLYMER, IN AN AQUEOUS SOL, BEING IN A LIQUID FORM BELOW A PH OF ABOUT 4.5 AND FORMING A VISCOUS GEL ABOVE A PH OF ABOUT 4.5, AND PARTIALLY DEGRADED KERATIN.
Claim 2
Dependent Claim
53 words
A BULK LAXATIVE COMPOSITION IN TABLET FORM COMPRISING A COLLOIDALLY WATER-SOLUBLE POLYMER OF ACRYLIC ACID CROSS-LINKED WITH AN ALLYLATED POLYHYDROXY COMPOUND, SAID POLYMER, IN AN AQUEOUS SOL, BEING IN A LIQUID FORM BELOW A PH OF ABOUT 4.5 AND FORMING A VISCOUS GEL ABOVE A PH OF ABOUT 4.5, AND PARTIALLY DEGRADED KERATIN.
References Cited (Backward Citations)
US2474339A
Cited
US2541142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |