Patent US3105792A successfully refreshed from Google Patents.
US3105792A
Expired / Lapsed
US
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Stable effervescent compositions and method of preparing same
Assignee: Warner Lambert Co LLC
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Filing: 1960-11-29
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Granted: 1963-10-01
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Expires: 1980-11-29
Abstract
No abstract record available.
Inventors
- 👤 White Barry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:35
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0002; A61K9/0007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN A PROCESS FOR THE PRODUCTION OF IMPROVED COMPOSI TIONS CONTAING A NON-TOXIC ORGANIC ACID AND AN ALKALI METAL BICARBIONATE WHICH ARE REACTIVE IN AQUEOUS SOLUTION TO PRODUCE EFFERVESCENCE, THE STEP CONSISTING ESSENTIALLY OF SUBJECTING PARTICLES OF SAID ALKALI METAL BICARBONATE TO HEAT TREATMENT WITH SUFFICIENT MOVEMENT AND AIR CIRCULATION PRIOR TO INCORPORATION IN SAID COMPOSITION WHEREBY AT LEAST PART OF THE EXPOSED SURFACE OF EACH PARTICLE IS MODIFIED BY CONVERSION TO THE CORRESPONDING CARBONATE, SAID CONVERSION BEING SUCH THAT AT LEAST 2% BY WEIGHT OF THE BICARBONATE IS CONVERTED TO THE CARBONATE.
Claim 2
Dependent Claim
93 words
IN A PROCESS FOR THE PRODUCTION OF IMPROVED COMPOSI TIONS CONTAING A NON-TOXIC ORGANIC ACID AND AN ALKALI METAL BICARBIONATE WHICH ARE REACTIVE IN AQUEOUS SOLUTION TO PRODUCE EFFERVESCENCE, THE STEP CONSISTING ESSENTIALLY OF SUBJECTING PARTICLES OF SAID ALKALI METAL BICARBONATE TO HEAT TREATMENT WITH SUFFICIENT MOVEMENT AND AIR CIRCULATION PRIOR TO INCORPORATION IN SAID COMPOSITION WHEREBY AT LEAST PART OF THE EXPOSED SURFACE OF EACH PARTICLE IS MODIFIED BY CONVERSION TO THE CORRESPONDING CARBONATE, SAID CONVERSION BEING SUCH THAT AT LEAST 2% BY WEIGHT OF THE BICARBONATE IS CONVERTED TO THE CARBONATE.
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |