US2985562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Effervescent compositions
Assignee: Warner Lambert Co LLC
•
Filing: 1958-03-27
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Granted: 1961-05-23
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Expires: 1978-03-27
Abstract
No abstract record available.
Inventors
- 👤 Millard Ruth
- 👤 Clemens A Balmert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:29
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0002; A61K9/0007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
PROCESS FOR THE PRODUCTION OF A FREE-FLOWING COMPOSITION REACTIVE IN AQUEOUS SOLUTION TO PRODUCE EFFERVESCENCE, WHICH COMPRISES FORMING A POWDERED MIXTURE WHICH INCLUDES A MEMBER OF THE GROUP CONSISTING OF AN ALKALI METAL CARBONATE AND AN ALKALI METAL BICARBONATE. AT LEAST ONE NON-TOXIC ORGANIC ACID, AND AN AMINO ACID, HEATING THE RESULTING POWDERED MIXTURE TO A TEMPERATURE OF 60 TO 120*C. AND THEN SEPARATING THE TREATED MIXTURE INTO A MIXTURE OF FREE-FLOWING DISCRETE PARTICLES.
Claim 2
Dependent Claim
74 words
PROCESS FOR THE PRODUCTION OF A FREE-FLOWING COMPOSITION REACTIVE IN AQUEOUS SOLUTION TO PRODUCE EFFERVESCENCE, WHICH COMPRISES FORMING A POWDERED MIXTURE WHICH INCLUDES A MEMBER OF THE GROUP CONSISTING OF AN ALKALI METAL CARBONATE AND AN ALKALI METAL BICARBONATE. AT LEAST ONE NON-TOXIC ORGANIC ACID, AND AN AMINO ACID, HEATING THE RESULTING POWDERED MIXTURE TO A TEMPERATURE OF 60 TO 120*C. AND THEN SEPARATING THE TREATED MIXTURE INTO A MIXTURE OF FREE-FLOWING DISCRETE PARTICLES.
References Cited (Backward Citations)
US2032890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |