Patent US2762853A successfully refreshed from Google Patents.
US2762853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Odorless solvent manufacture
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-06-08
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Granted: 1956-09-11
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Expires: 1974-06-08
Abstract
No abstract record available.
Inventors
- 👤 William A Jones
- 👤 Curvin H Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:47
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/16; C07C7/00; C07C7/148; C07C7/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
IMPROVED PROCESS FOR THE PREPARATION OF A HIGH QUALITY ESSENTIALLY ODORLESS HYDROCARBON SOLVENT WHICH COMPRISES ALKYLATING AN ISOPARAFFIN WITH AN OLEFIN, SEGREGATING A FRACTION OF THE ALKYLATE PRODUCT BOILING IN THE RANGE FROM ABOUT 350* TO 450* F., AND THEREAFTER MILDLY HYDROFINING SAID FRACTION AT CONDITIONS TO SECURE A POSITIVE
Claim 2
Dependent Claim
50 words
IMPROVED PROCESS FOR THE PREPARATION OF A HIGH QUALITY ESSENTIALLY ODORLESS HYDROCARBON SOLVENT WHICH COMPRISES ALKYLATING AN ISOPARAFFIN WITH AN OLEFIN, SEGREGATING A FRACTION OF THE ALKYLATE PRODUCT BOILING IN THE RANGE FROM ABOUT 350* TO 450* F., AND THEREAFTER MILDLY HYDROFINING SAID FRACTION AT CONDITIONS TO SECURE A POSITIVE
References Cited (Backward Citations)
US2298330A
Cited
US2531767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |