Patent US2862876A successfully refreshed from Google Patents.
US2862876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of purifying heavy fuel oil for fueling internal combustion engines
Assignee: SPEARATOR AB
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Filing: 1956-06-05
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Granted: 1958-12-02
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Expires: 1976-06-05
Abstract
No abstract record available.
Inventors
- 👤 Winberg Hugo Torbjorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:36
CPC Classifications
C; C10; C10G; C10G31/00; C10G31/10; Y; Y10; Y10S; Y10S494/00; Y10S494/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
IN THE PURIFICATION OF HEAVY FUEL OIL FOR USE IN FUELING INTERNAL COMBUSTION ENGINES, WHEREIN THE OIL IS SUBJECTED TO CENTRIFUGAL SEPARATION, THE OIL BEING STORED IN A STORING ZONE, THE IMPROVEMENT WHICH COMPRISES HOMOGENIZING THE OIL AFTER THE CENTRIFUGAL SEPARATION,
Claim 2
Dependent Claim
41 words
IN THE PURIFICATION OF HEAVY FUEL OIL FOR USE IN FUELING INTERNAL COMBUSTION ENGINES, WHEREIN THE OIL IS SUBJECTED TO CENTRIFUGAL SEPARATION, THE OIL BEING STORED IN A STORING ZONE, THE IMPROVEMENT WHICH COMPRISES HOMOGENIZING THE OIL AFTER THE CENTRIFUGAL SEPARATION,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |