Patent US2717856A successfully refreshed from Google Patents.
US2717856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating oil processing for improved quality
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-07-09
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Granted: 1955-09-13
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Expires: 1972-07-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Harold A Ricards
- 👤 Raymond L Betts
- 👤 Harry M Hartzband
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:31
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10L; C10L1/00; C10L1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
IMPROVED PROCESS FOR THE PRODUCTION OF A HEATING OIL BLEND FROM A MERCAPTAN-CONTAINING VIRGIN FRACTION AND FROM A CATALYTICALLY CRACKED FRACTION WHICH COMPRISES CAUSTIC WASHING THE CRACKED FRACTION PRIOR TO CONTACT WITH AIR, PARTIALLY SWEETENING THE VIRGIN FRACTION TO A COPPER NUMBER IN THE RANGE FROM ABOUT 15 TO 30 AND BLENDING THE RESPECTIVE FRACTIONS.
Claim 2
Dependent Claim
55 words
IMPROVED PROCESS FOR THE PRODUCTION OF A HEATING OIL BLEND FROM A MERCAPTAN-CONTAINING VIRGIN FRACTION AND FROM A CATALYTICALLY CRACKED FRACTION WHICH COMPRISES CAUSTIC WASHING THE CRACKED FRACTION PRIOR TO CONTACT WITH AIR, PARTIALLY SWEETENING THE VIRGIN FRACTION TO A COPPER NUMBER IN THE RANGE FROM ABOUT 15 TO 30 AND BLENDING THE RESPECTIVE FRACTIONS.
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) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |