Patent US2248608A successfully refreshed from Google Patents.
US2942014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidative coupling process
Assignee: Monsanto Chemicals Ltd
•
Filing: 1955-12-07
•
Granted: 1960-06-21
•
Expires: 1975-12-07
Abstract
No abstract record available.
Inventors
- 👤 Margaret D Cameron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:00
CPC Classifications
C; C07; C07C; C07C33/00; C07C33/04; C07C33/042; C07C67/00; C07C67/28; C07C67/293
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE PROCESS WHICH COMPRISES THE OXIDATIVE COUPLING OF AN ACETYLENIC OXY COMPOUND CONTAINING AN ACETYLENIC HYDROGEN ATOM AND SELECTED FROM THE CLASS CONSISTING OF LOWER ALKYNYL ALCOHOLS, HYDROCARBYL ETHERS AND HYDROCARBYL CARBOXYLIC ACID ESTERS OF THE SAID ALCOHOLS HAVING NOT MORE THAN 19 CARBON ATOMS IN THE ETHER AND ESTER GROUPS, IN THE PRESENCE OF CUPROUS CHLORIDE AND A HYDROCARBYL AMINE HYDROCHLORIDE SALT HAVING NOT MORE THAN 12 CARBON ATOMS.
Claim 2
Dependent Claim
70 words
THE PROCESS WHICH COMPRISES THE OXIDATIVE COUPLING OF AN ACETYLENIC OXY COMPOUND CONTAINING AN ACETYLENIC HYDROGEN ATOM AND SELECTED FROM THE CLASS CONSISTING OF LOWER ALKYNYL ALCOHOLS, HYDROCARBYL ETHERS AND HYDROCARBYL CARBOXYLIC ACID ESTERS OF THE SAID ALCOHOLS HAVING NOT MORE THAN 19 CARBON ATOMS IN THE ETHER AND ESTER GROUPS, IN THE PRESENCE OF CUPROUS CHLORIDE AND A HYDROCARBYL AMINE HYDROCHLORIDE SALT HAVING NOT MORE THAN 12 CARBON ATOMS.
References Cited (Backward Citations)
US1926039A
Cited
US2796442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |