Patent US3346487A successfully refreshed from Google Patents.
US3346487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deflocculation of solid materials in aqueous medium
Assignee: Monsanto Co
•
Filing: 1965-06-11
•
Granted: 1967-10-10
•
Expires: 1985-06-11
Abstract
No abstract record available.
Inventors
- 👤 Riyad R Irani
- 👤 John W Lyons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:16
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/0004; B01J13/0034; C; C04; C04B; C04B7/00; C04B7/36; C04B7/38; C04B7/42; C04B7/428; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A SLURRY COMPRISING AN AQUEOUS VEHICLE CONTAINING FINELY DIVIDED SOLID MATERIALS SELECTED FROM THE CLASS CONSISTING OF COAL AND INORGANIC SOLID MATERIALS SELECTED FROM THE GROUP CONSISTING OF CLAYS, BAUXITE, PHOSPHATE-CONTAINING ORES, CEMENTS AND PIGMENTS, AND, AS A DEFLOCCULATING AGENT TO DISPERSE SAID SOLID MATERIALS INTO A FINELY DIVIDED DISPERSION, A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACIDS HAVING THE FORMULA:
Claim 2
Dependent Claim
62 words
A SLURRY COMPRISING AN AQUEOUS VEHICLE CONTAINING FINELY DIVIDED SOLID MATERIALS SELECTED FROM THE CLASS CONSISTING OF COAL AND INORGANIC SOLID MATERIALS SELECTED FROM THE GROUP CONSISTING OF CLAYS, BAUXITE, PHOSPHATE-CONTAINING ORES, CEMENTS AND PIGMENTS, AND, AS A DEFLOCCULATING AGENT TO DISPERSE SAID SOLID MATERIALS INTO A FINELY DIVIDED DISPERSION, A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACIDS HAVING THE FORMULA:
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |