US2515949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of producing sols
Assignee: Monsanto Chemicals Ltd
•
Filing: 1947-09-29
•
Granted: 1950-07-18
•
Expires: 1967-09-29
Abstract
No abstract record available.
Inventors
- 👤 Maio Vincent Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:01
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/141; C01B33/146; C01B33/148; C01B33/1485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE METHOD OF PREPARING A RELATIVELY STABLE, ALKALINE REACTING ORGANO-AQUASOL CONTAINING SILICA WHICH COMPRISES ADMIXING A DILUTE ALKALINE SOLUTION COMPRISING FROM 0.025 TO 0.15 MOL PER LITER OF ALKALINE COMPOUND AND AN ACID REACTING ORGANO-AQUASOL CONTAINING SILICA, SAID ACID REACTING SOL HAVING A PH OF FROM 2.0 TO 4.0, SAID ALKALINE SOLUTION BEING SUPPLIED IN AN AMOUNT SUFFICIENT TO PROVIDE A FINAL MIXTURE WHICH IS ALKALINE REACTING.
Claim 2
Independent Claim
67 words
THE METHOD OF PREPARING A RELATIVELY STABLE, ALKALINE REACTING ORGANO-AQUASOL CONTAINING SILICA WHICH COMPRISES ADMIXING A DILUTE ALKALINE SOLUTION COMPRISING FROM 0.025 TO 0.15 MOL PER LITER OF ALKALINE COMPOUND AND AN ACID REACTING ORGANO-AQUASOL CONTAINING SILICA, SAID ACID REACTING SOL HAVING A PH OF FROM 2.0 TO 4.0, SAID ALKALINE SOLUTION BEING SUPPLIED IN AN AMOUNT SUFFICIENT TO PROVIDE A FINAL MIXTURE WHICH IS ALKALINE REACTING.
References Cited (Backward Citations)
US2285477A
Cited
US2285449A
Cited
US2386247A
Cited
US2377842A
Cited
US2391253A
Cited
US2391255A
Cited
US2375738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |