US3122528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of volatile materials from flotable solids
Assignee: Phillips Petroleum Co
•
Filing: 1962-01-31
•
Granted: 1964-02-25
•
Expires: 1982-01-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Stanley D Hanesworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:23
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/08; Y; Y10; Y10S; Y10S159/00; Y10S159/03; Y10S159/10; Y10S159/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A PROCESS WHEREIN FLOTABLE SOLIDS ARE SKIMMED FROM A SLURRY OF SAID SOLIDS IN A LIQUID COMPRISING A LOW BOILING COMPONENT, CONVEYED UP AN CINCLINED SURFACE, AND CONTACTED WITH AN INERT STRIPPING GAS INTRODUCED AT THE UPPER END PORTION OF SAID INCLINED SURACE, SAID GAS REMOVED AT THE LOWER END PORTION OF SAID INCLINED SURFACE, THE IMPROVEMENT COMPRISING FLUIDIZING SAID SOLIDS BEING CONVEYED UP SAID INCLINED PLANE AT A POINT BETWEEN THE
Claim 2
Dependent Claim
73 words
IN A PROCESS WHEREIN FLOTABLE SOLIDS ARE SKIMMED FROM A SLURRY OF SAID SOLIDS IN A LIQUID COMPRISING A LOW BOILING COMPONENT, CONVEYED UP AN CINCLINED SURFACE, AND CONTACTED WITH AN INERT STRIPPING GAS INTRODUCED AT THE UPPER END PORTION OF SAID INCLINED SURACE, SAID GAS REMOVED AT THE LOWER END PORTION OF SAID INCLINED SURFACE, THE IMPROVEMENT COMPRISING FLUIDIZING SAID SOLIDS BEING CONVEYED UP SAID INCLINED PLANE AT A POINT BETWEEN THE
References Cited (Backward Citations)
US2957861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |