US3708524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing hydroxyalkylacrylates or hydroxyalkylmethacrylates
Assignee: Japan Gas Chemical Co Inc
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Filing: 1970-06-05
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Granted: 1973-01-02
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Expires: 1990-06-05
Abstract
Abstract PROCESS FOR THE PREPARATION OF HYDROXYALKYLACRYLATES OR HYDROXYALKYLMETHACRYLATES, THE IMPROVEMENT WHICH IS THE USE OF TRIVALENT IRON COMPOUNDS AS CATALYSTS.
Inventors
- 👤 M Murayama
- 👤 K Abe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:51
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/52; C07C69/533; C07C69/54; C07C67/00; C07C67/24; C07C67/26
Claims Analysis
Total Claims: 0
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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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |