US2499393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of alpha-acyloxyacrylic acids
Assignee: Eastman Kodak Co
•
Filing: 1947-09-25
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Granted: 1950-03-07
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Expires: 1967-09-25
Abstract
No abstract record available.
Inventors
- 👤 William O Kenyon
- 👤 Cornelius C Unruh
- 👤 Thomas T M Laakso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:35
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/66; C07C69/73; C07C69/732
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A PROCESS FOR PREPARING AN ESTER OF AN A-ACYLOXYACRYLIC ACID WHICH COMPRISES REACTING AN ESTER REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
19 words
A PROCESS FOR PREPARING AN ESTER OF AN A-ACYLOXYACRYLIC ACID WHICH COMPRISES REACTING AN ESTER REPRESENTED BY THE FORMULA:
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) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |