US3136692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Effervescent composition containing polyvinylpyrrolidone
Assignee: Strong Cobb Arner Inc
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Filing: 1961-06-30
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Granted: 1964-06-09
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Expires: 1981-06-30
Abstract
No abstract record available.
Inventors
- 👤 Fred J Bandelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:33
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0002; A61K9/0007; A61K33/00; A61K33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A COMPOSITION WHICH EFFERVESCES AND PRODUCES A CLEAR POTABLE SOLUTION WHEN ADDED TO WATER AND WHICH COMPRISES AN ANHYDROUS MIXTURE OF AT LEAST ONE SOLID ORGANIC ACID SELECTED FROM THE GROUP CONSISTING OF TARTARIC ACID, CITRIC ACID, MALIC ACID, MALEIC ACID, FUMARIC ACID AND SUCCINIC ACID, AT LEAST ONE ALKLALI METAL CARBONATE COMPOUND, AND POLUYVINYLPYRROLIDONE HAVING A MOLECUALAR WEIGHT BETWEEN 30000 AND 200000.
Claim 2
Dependent Claim
63 words
A COMPOSITION WHICH EFFERVESCES AND PRODUCES A CLEAR POTABLE SOLUTION WHEN ADDED TO WATER AND WHICH COMPRISES AN ANHYDROUS MIXTURE OF AT LEAST ONE SOLID ORGANIC ACID SELECTED FROM THE GROUP CONSISTING OF TARTARIC ACID, CITRIC ACID, MALIC ACID, MALEIC ACID, FUMARIC ACID AND SUCCINIC ACID, AT LEAST ONE ALKLALI METAL CARBONATE COMPOUND, AND POLUYVINYLPYRROLIDONE HAVING A MOLECUALAR WEIGHT BETWEEN 30000 AND 200000.
References Cited (Backward Citations)
US2540253A
Cited
US2820741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |