US2957889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beta-alkoxycarbonyl compounds and process for manufacture of same
Assignee: Union Carbide Corp
•
Filing: 1956-08-01
•
Granted: 1960-10-25
•
Expires: 1976-08-01
Abstract
No abstract record available.
Inventors
- 👤 Raymond I Hoaglin
- 👤 Donald G Kubler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:00
CPC Classifications
C; C11; C11B; C11B9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
UNSATURATED BETA-ALKOXYCARBONYL COMPOUNDS OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
7 words
UNSATURATED BETA-ALKOXYCARBONYL COMPOUNDS OF THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2487525A
Cited
US2561254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |