US3395202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment composition for marking gelating capsules
Assignee: Wyeth Holdings LLC
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Filing: 1963-06-14
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Granted: 1968-07-30
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Expires: 1983-06-14
Abstract
No abstract record available.
Inventors
- 👤 Yen Ernest Chu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:13
CPC Classifications
B; B41; B41F; B41F17/00; B41F17/36; A; A61; A61J; A61J3/00; A61J3/007; A61K; A61K9/00; A61K9/20; A61K9/2072; A61K9/48; A61K9/4883; B41M; B41M1/00; B41M1/26; B41M1/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A METHOD OF FORMING PIGMENT MARKED EDIBLE SOFT GELATIN CAPSULES HAVING PIGMENTED INDICIA ON THE SURFACE WHICH COMPRISES: SUSPENDING FROM 10 TO 20 PARTS OF A NON-TOXIC WATER AND ALCOHOL INSOLUBLE PIGMENT SELECTED FROM THE GROUP CONSISTING OF TITANIUM DIOXIDE, CALCIUM CARBONATE, BARIUM SULFATE, CHARCOAL, IRON OXIDES AND THE LAKES OF DYES APPROVED FOR DRUG AND COSMETIC USE, IN 30 TO 60 PARTS OF A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF PROPYLENE GLYCOL, POLYEHTYLENE GLYCOL AND GLYCERINE AND SUFFICIENT WATER TO MAKE A TOTAL OF 100 PARTS WITH THE AID OF 0.005 TO 1 PART OF A NON-TOXIC SUR-/ FACE ACTIVE SUSPENDING AGENT IN THE PRESENCE OF FROM ABOUT 0.5 TO 3 PARTS OF A WATER-SOLUBLE NON-TOXIC CELLULOSE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF METHYL CELLULOSE AND SODIUM CARBOXYMETHYL CELLULOSE, APPLYING THE THUS FORMED PIGMENT MARKETING FLUID TO A WET SOFT GELATIN STRIP, FORMING GELATIN CAPSULES FROM SAID STRIP, AND THEREAFTER DRYING THE PIGMENT MARKED CAPSULES.
Claim 2
Independent Claim
159 words
A METHOD OF FORMING PIGMENT MARKED EDIBLE SOFT GELATIN CAPSULES HAVING PIGMENTED INDICIA ON THE SURFACE WHICH COMPRISES: SUSPENDING FROM 10 TO 20 PARTS OF A NON-TOXIC WATER AND ALCOHOL INSOLUBLE PIGMENT SELECTED FROM THE GROUP CONSISTING OF TITANIUM DIOXIDE, CALCIUM CARBONATE, BARIUM SULFATE, CHARCOAL, IRON OXIDES AND THE LAKES OF DYES APPROVED FOR DRUG AND COSMETIC USE, IN 30 TO 60 PARTS OF A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF PROPYLENE GLYCOL, POLYEHTYLENE GLYCOL AND GLYCERINE AND SUFFICIENT WATER TO MAKE A TOTAL OF 100 PARTS WITH THE AID OF 0.005 TO 1 PART OF A NON-TOXIC SUR-/ FACE ACTIVE SUSPENDING AGENT IN THE PRESENCE OF FROM ABOUT 0.5 TO 3 PARTS OF A WATER-SOLUBLE NON-TOXIC CELLULOSE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF METHYL CELLULOSE AND SODIUM CARBOXYMETHYL CELLULOSE, APPLYING THE THUS FORMED PIGMENT MARKETING FLUID TO A WET SOFT GELATIN STRIP, FORMING GELATIN CAPSULES FROM SAID STRIP, AND THEREAFTER DRYING THE PIGMENT MARKED CAPSULES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |