Patent US3701737A successfully refreshed from Google Patents.
US3701737A
Expired / Lapsed
US
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Sodium carbonate-sodium bicarbonate agglomerates
Assignee: FMC Corp
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Filing: 1970-10-30
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Granted: 1972-10-31
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Expires: 1990-10-30
Abstract
Abstract A LOW BULK DENSITY, ABSORPTIVE AGGLOMERATE CONTAINING BOTH SODIUM CARBONATE AND SODIUM BICARBONATE VALUES, FOR USE IN MILD DETERGENT FORMULATIONS, IS PRODUCED BY (A) AGGLOMERATING FINE SODA ASH PARTICLES WITH WATER, (B) CARBONATING THE RESULTING WET SODIUM CARBONATE MONOHYDRATE WITH CARBON DIOXIDE TO OBTAIN CARBONATED AGGLOMERATES HAVING AN NAHCO3:NA2CO3 MOLE RATIO OF ABOUT 0.4:1 TO ABOUT 1.5:1 AS THE PRODUCT.
Inventors
- 👤 David Goldstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:01
CPC Classifications
C; C01; C01D; C01D7/00; C01D7/38; C11; C11D; C11D7/00; C11D7/02; C11D7/04; C11D7/10; C11D7/12
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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |