US2910374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition
Assignee: EIDP Inc
•
Filing: 1957-08-01
•
Granted: 1959-10-27
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Expires: 1977-08-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank A Simko
- 👤 Charles B Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:47
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/77; D06M11/79
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A COMPOSITION COMPRISING AN OIL, AQUEOUS COLLOIDAL SILICA SOL IN WHICH THE SILICA IS PRESENT AS SUBSTANTIALLY NON-AGGLOMERATED ULTIMATE PARICLES FROM 5 TO 150 MILLIMICRONS IN DIAMETER, AND EMULSIFIER FOR THE OIL, THE DOL, OIL AND EMULSIFIER BEING PREDENT AS A MIXTURE WHICH IS BY VISAL EXAMINATION A SUBSTANTIALLY FREE OF TRANSPARENT, HOMOGENEOUS SYSTEM SOL TO OIL BEING FROM 6:1 TO CREAMING, THE RATIO OF SILICA SOL TO OIL BEING FROM 6:1 TO 9:1 AND THE RATIO OF OIL TO THE EMULSIFIER BEING FROM 9:1 TO 10,4:1 BY WEIGHT.
Claim 2
Dependent Claim
89 words
A COMPOSITION COMPRISING AN OIL, AQUEOUS COLLOIDAL SILICA SOL IN WHICH THE SILICA IS PRESENT AS SUBSTANTIALLY NON-AGGLOMERATED ULTIMATE PARICLES FROM 5 TO 150 MILLIMICRONS IN DIAMETER, AND EMULSIFIER FOR THE OIL, THE DOL, OIL AND EMULSIFIER BEING PREDENT AS A MIXTURE WHICH IS BY VISAL EXAMINATION A SUBSTANTIALLY FREE OF TRANSPARENT, HOMOGENEOUS SYSTEM SOL TO OIL BEING FROM 6:1 TO CREAMING, THE RATIO OF SILICA SOL TO OIL BEING FROM 6:1 TO 9:1 AND THE RATIO OF OIL TO THE EMULSIFIER BEING FROM 9:1 TO 10,4:1 BY WEIGHT.
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) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |