US3076788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing alpha-isocyanato ethers and products thereof
Assignee: EIDP Inc
•
Filing: 1959-02-27
•
Granted: 1963-02-05
•
Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Fred W Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:07
CPC Classifications
C; C07; C07C; C07C265/00; C07D; C07D309/00; C07D309/02; C07D309/08; C07D309/14; D; D06; D06M; D06M13/00; D06M13/322; D06M13/395
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
THE PROCESS OF PREPARING AN A-ISOCYANATO ETHER WHICH COMPRISES REACTING ISOCYANIC ACID AND AN ETHER IN WHICH ONE, AND ONYL ONE, OF THE CARBONS ATTACHED TO THE ETHER OXYGEN CARRIES A CARBON-TO-CARBON DOUBLE BOND AT A TEMPERATURE BETWEEN ABOUT -80 AND 75*C., SAID ETHER BEING HYDROCARBON EXCEPT FOR THE ETHER FURNCTION.
Claim 2
Dependent Claim
51 words
THE PROCESS OF PREPARING AN A-ISOCYANATO ETHER WHICH COMPRISES REACTING ISOCYANIC ACID AND AN ETHER IN WHICH ONE, AND ONYL ONE, OF THE CARBONS ATTACHED TO THE ETHER OXYGEN CARRIES A CARBON-TO-CARBON DOUBLE BOND AT A TEMPERATURE BETWEEN ABOUT -80 AND 75*C., SAID ETHER BEING HYDROCARBON EXCEPT FOR THE ETHER FURNCTION.
References Cited (Backward Citations)
US2409712A
Cited
US2727020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |