Patent US2625563A successfully refreshed from Google Patents.
US2625563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-ethyl butyric acid and 2-ethyl hexoic acid esters of 2, 2, 4-trimethyl pentane diol-1, 3
Assignee: Eastman Kodak Co
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Filing: 1952-02-01
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Granted: 1953-01-13
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Expires: 1972-02-01
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:17
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/02; C07C69/22; C07C69/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
AN ESTER SELECTED FROM THE GROUP CONSISTING OF DI-2-ETHYL BUTYRIC ACID ESTERS AND THE DI-2ETHYL HEXOIC ACID ESTERS OF 2,2,4-TRIMETHYL PENTANE DIOL-1,3.
Claim 2
Dependent Claim
22 words
AN ESTER SELECTED FROM THE GROUP CONSISTING OF DI-2-ETHYL BUTYRIC ACID ESTERS AND THE DI-2ETHYL HEXOIC ACID ESTERS OF 2,2,4-TRIMETHYL PENTANE DIOL-1,3.
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) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |