US3149039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film coating for tablets and the like and method of coating
Assignee: Dow Chemical Co
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Filing: 1961-10-03
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Granted: 1964-09-15
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Expires: 1981-10-03
Abstract
No abstract record available.
Inventors
- 👤 Sampson F Jeffries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:20
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/28; A61K9/2806; A61K9/2833; A61K9/2853; A61K9/282
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A FLUID COMPOSITION ADAPTED FOR APPLICATION TO TABLETS AND THE LIKE WHICH CONSISTS ESSENTIALLY OF FROM ABOUT 35 TO 45% W./V. OF A WATER-SOLUBLE POLYETHYLENE GLYCOL HAVING A MOLECULAR WEIGHT IN THE RANGE OF ABOUT 3,000 TO 7,500 AND FROM ABOUT 0.9 TO 2.9% W./V. OF MASTIC, DISSOLVED IN A VOLATILE NON-AQUEOUS SOLVENT.
Claim 2
Dependent Claim
53 words
A FLUID COMPOSITION ADAPTED FOR APPLICATION TO TABLETS AND THE LIKE WHICH CONSISTS ESSENTIALLY OF FROM ABOUT 35 TO 45% W./V. OF A WATER-SOLUBLE POLYETHYLENE GLYCOL HAVING A MOLECULAR WEIGHT IN THE RANGE OF ABOUT 3,000 TO 7,500 AND FROM ABOUT 0.9 TO 2.9% W./V. OF MASTIC, DISSOLVED IN A VOLATILE NON-AQUEOUS SOLVENT.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |