US3210168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized oiled coal slurry in water
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1962-05-22
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Granted: 1965-10-05
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Expires: 1982-05-22
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Morway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:39
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/32; C10L1/324; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A STABILIZED AQUEOUS SLURRY OF POWDERED COAL AND RESIDUAL PETROLEUM FUEL OIL WHICH COMPRISES 8 TO 200 MESH PARTICLES COAL IN A PROPORTION OF 45 TO 50 WT. PERCENT, 25 TO 35 WT. PERCENT OF PETROLEUM RESIDUAL OIL HAVING A SPECIFIC GRAVITY OF 0.9 TO 1 AT 60*F. AND A SAYBOLT FUROL VISCOSITY OF 40 TO 300 SECONDS AT 122*F., TO 20 WT. PERCENT WATER AND ABOUT 0.3 TO 2.0 WT. PERCENT OF AN IMIDAZOLINE SURFACTANT OF THE FORMULA:
Claim 2
Dependent Claim
79 words
A STABILIZED AQUEOUS SLURRY OF POWDERED COAL AND RESIDUAL PETROLEUM FUEL OIL WHICH COMPRISES 8 TO 200 MESH PARTICLES COAL IN A PROPORTION OF 45 TO 50 WT. PERCENT, 25 TO 35 WT. PERCENT OF PETROLEUM RESIDUAL OIL HAVING A SPECIFIC GRAVITY OF 0.9 TO 1 AT 60*F. AND A SAYBOLT FUROL VISCOSITY OF 40 TO 300 SECONDS AT 122*F., TO 20 WT. PERCENT WATER AND ABOUT 0.3 TO 2.0 WT. PERCENT OF AN IMIDAZOLINE SURFACTANT OF 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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |