Patent EP0490714A1 successfully refreshed from Google Patents.
US3219533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol solid medicament in propellant and low-level ethanol avoiding higher-level ethanol dispersed-solid reflocculation
Assignee: Merck and Co Inc
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Filing: 1962-11-29
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Granted: 1965-11-23
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Expires: 1982-11-29
Abstract
No abstract record available.
Inventors
- 👤 John D Mullins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:58
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/007; A61K9/0073; A61K9/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A SELF-PROPELLING MEDICAMENT COMPOSITION CONSISTING ESSENTIALLY OF A SUSPENSION OF A SOLID, SUBSTANTIALLY ANHYDROUS MEDICAMENT IN A SUBSTANTIALLY ANHYDROUS LIQUID CARRIER COMPRISED ESSENTIALLY OF A MIXTURE OF A NONTOXIC PROPELLANT AND ETHANOL, SAID MEDICAMENT BEING SUBSTANTIALLY INSOLUBLE IN SAID MIXTURE OF PROPELLANT AND ETHANOL AND HAVING A PARTICLE SIZE IN THE RANGE OF FROM ABOUT 0.5 TO ABOUT 10 MICRONS, AND SAID ETHANOL BEING PRESENT IN AN AMOUNT OF FROM ABOUT 0.5% TO NOT MORE THAN ABOUT 5% BY WEIGHT OF SAID COMPOSITION, IN ORDER TO THEREBY AVOID SOME REFLOCCULATION OF THE DISPERSED SOLIDS CAUSED BY HIGHER LEVEL OF ETHANOL.
Claim 2
Dependent Claim
100 words
A SELF-PROPELLING MEDICAMENT COMPOSITION CONSISTING ESSENTIALLY OF A SUSPENSION OF A SOLID, SUBSTANTIALLY ANHYDROUS MEDICAMENT IN A SUBSTANTIALLY ANHYDROUS LIQUID CARRIER COMPRISED ESSENTIALLY OF A MIXTURE OF A NONTOXIC PROPELLANT AND ETHANOL, SAID MEDICAMENT BEING SUBSTANTIALLY INSOLUBLE IN SAID MIXTURE OF PROPELLANT AND ETHANOL AND HAVING A PARTICLE SIZE IN THE RANGE OF FROM ABOUT 0.5 TO ABOUT 10 MICRONS, AND SAID ETHANOL BEING PRESENT IN AN AMOUNT OF FROM ABOUT 0.5% TO NOT MORE THAN ABOUT 5% BY WEIGHT OF SAID COMPOSITION, IN ORDER TO THEREBY AVOID SOME REFLOCCULATION OF THE DISPERSED SOLIDS CAUSED BY HIGHER LEVEL OF ETHANOL.
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |