US2496791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming unsaturated acid esters
Assignee: Eastman Kodak Co
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Filing: 1947-09-10
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Granted: 1950-02-07
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Expires: 1967-09-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Hugh J Hagemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:35
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
THE METHOD OF FORMING UNSATURATED ACID ESTERS HAVING THE GENERAL STRUCTURE:
Claim 2
Independent Claim
11 words
THE METHOD OF FORMING UNSATURATED ACID ESTERS HAVING THE GENERAL STRUCTURE:
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) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |