US2868655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salt tablets containing an ethylenediaminetetracetic acid compound and process of producing the same
Assignee: International Salt Co Inc
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Filing: 1956-12-31
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Granted: 1959-01-13
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Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Ladenburg Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:49
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/02; A23B4/023; A23B4/0235; C; C01; C01D; C01D3/00; C01D3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS COMPRISING THOROUGHLY ADMIXING SODIUM CHLORIDE AND AT LEAST ABOUT 0.5% OF A WATER-SOLUBLE EDTA COMPOUND BY WEIGHT OF THE SODIUM CHLORIDE WITH SUFFICIENT WATER TO YIELD A SUBSTANTIALLY HOMOGENEOUS PASTE, DRYING THE PASTE, GRINDING THE DRIED MIXTURE INTO PARTICLES AT LEAST ABOUT 85% OF WHICH HAVE A SIZE PASSING A NO. 30 SCREEN, THOROUGHLY ADMIXING ABOUT 0.05 TO 2.0% OF A COHESIVE AGENT INTO THE GROUND MIXTURE, AND PRESSING THE RESULTING MIXTURE INTO TABLETS.
Claim 2
Dependent Claim
76 words
A PROCESS COMPRISING THOROUGHLY ADMIXING SODIUM CHLORIDE AND AT LEAST ABOUT 0.5% OF A WATER-SOLUBLE EDTA COMPOUND BY WEIGHT OF THE SODIUM CHLORIDE WITH SUFFICIENT WATER TO YIELD A SUBSTANTIALLY HOMOGENEOUS PASTE, DRYING THE PASTE, GRINDING THE DRIED MIXTURE INTO PARTICLES AT LEAST ABOUT 85% OF WHICH HAVE A SIZE PASSING A NO. 30 SCREEN, THOROUGHLY ADMIXING ABOUT 0.05 TO 2.0% OF A COHESIVE AGENT INTO THE GROUND MIXTURE, AND PRESSING THE RESULTING MIXTURE INTO TABLETS.
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) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |