Patent US4928770A successfully refreshed from Google Patents.
US2963499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ester synthesis
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1958-06-25
•
Granted: 1960-12-06
•
Expires: 1978-06-25
Abstract
No abstract record available.
Inventors
- 👤 Aldridge Clyde Lee
- 👤 Cull Neville Leverne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:59
CPC Classifications
C; C10; C10M; C10M169/00; C07; C07C; C07C27/00; C07C27/20; C07C27/22; C07C51/00; C07C51/10; C07C51/14; C07C67/00; C07C67/36; C07C67/38; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A PROCESS FOR THE PRODUCTON OF ESTERS WHICH COMPRISES REACTING AN OLEFINIC COMPOUND HAVING N CARBON ATOMS WITH HYDROGEN AND CARBON MONOXIDE AT ELEVATED TEMPERATURES AND PRESSURES IN CONTACT WITH AN OXO CATALYST AND AN IONIC STANNOUS COMPOUND TO PRODUCE AN ESTER CONTAINING 2N+2 CARBON ATOMS.
Claim 2
Dependent Claim
46 words
A PROCESS FOR THE PRODUCTON OF ESTERS WHICH COMPRISES REACTING AN OLEFINIC COMPOUND HAVING N CARBON ATOMS WITH HYDROGEN AND CARBON MONOXIDE AT ELEVATED TEMPERATURES AND PRESSURES IN CONTACT WITH AN OXO CATALYST AND AN IONIC STANNOUS COMPOUND TO PRODUCE AN ESTER CONTAINING 2N+2 CARBON ATOMS.
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) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |