Patent US3783136A successfully refreshed from Google Patents.
US3783136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing unsaturated carboxylic acid esters
Assignee: JNC Corp
•
Filing: 1970-12-16
•
Granted: 1974-01-01
•
Expires: 1990-12-16
Abstract
Abstract UNSATURATED MONOCARBOXYLIC ACID ESTERS WHICH ARE ADDITION COMPOUNDS OF AN OLEFIN TO A (METH) ACRYLIC ACID ESTER, OR UNSATURATED DICARBOXYLIC ACID DIESTERS WHICH ARE ADDITION COMPOUNDS IF AN OLEFIN OR AN UNSATURATED MONOCARBOXYLIX ACID ESTER TO A (METH) ACRYLIC ACID ESTER, CAN BE PRODUCED WITH A HIGH YEILD AND WITHOUT FORMING ISOMER, BY REACTING SAID OLEFIN OR SAID UNSATURATED MONOCARBOXYLIC ACID ESTER WITH SAID (METH) ACRYLIC ACID ESTER, AT A TEMPERTURE RANGING FROM ROOM TEMPERATURE TO 250*C., IN THE PRESENCE OF AIX3 (WHEREIN X IS CI OR BR).
Inventors
- 👤 T Inukai
- 👤 T Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:52
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/52
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |