US3780160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbonation process for the manufacture of sodium bicarbonate
Assignee: Intermountain Research and Development Corp
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Filing: 1971-08-02
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Granted: 1973-12-18
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Expires: 1991-08-02
Abstract
Abstract SODIUM BICARBONATE IS PRODUCED FROM TRONA BY DISSOLVING TRONA IN AN AQUEOUS SOLVENT, REMOVING INSOLUBLES FROM THE RESULTING SOLUTION, CRYSTALLIZING SODIUM SESQUICARBONATE, DISSOLVING THE SODIUM SESQUICARBONATE CRYSTALS IN AN AQUEOUS SOLVENT, CARBONATING THE SODIUM SESQUICARBONATE SOLUTION AND CRYSTALLIZING SODIUM BICARBONATE FROM THE CARBONATED SOLUTION. D R A W I N G
Inventors
- 👤 R Waggener
- 👤 J Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:43
CPC Classifications
C; C01; C01D; C01D7/00; C01D7/14; C01D7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |