Patent US2687991A successfully refreshed from Google Patents.
US2687991A
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Heating oil
Assignee: Standard Oil Development Co
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Filing: 1952-02-04
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Granted: 1954-08-31
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Expires: 1972-02-04
Abstract
No abstract record available.
Inventors
- 👤 James R Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:54
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
A HEATING OIL COMPOSITION HAVING A LOW CARBON RESIDUE VALUE WHICH CONSISTS OF AN AMOUNT IN THE RANGE BETWEEN 10% AND 50% BY VOLUME OF A SOUR DISTILLATE OF A CRUDE PETROLEUM, AN AMOUNT IN THE RANGE BETWEEN 50% AND 90% BY VOLUME OF THERMALLY AND CATALYTICALLY CRACKED DISTILLATES, SAID DISTILLATES BOILING IN THE RANGE BETWEEN 350* AND 700* F., NO MORE THAN 50% OF THE COMPOSITION BEING A CATALYTICALLY CRACKED DISTILLATE AND SAID COMPOSITION HAVING AN ASTM D189-46 CARBON RESIDUE VALUE NO GREATER THAN 0.10.
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) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |