US2592234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticized cellulose acetate-butyrate and cellulose acetatepropionate
Assignee: Eastman Kodak Co
•
Filing: 1949-02-16
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Granted: 1952-04-08
•
Expires: 1969-02-16
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:43
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/02; C07C69/22; C07C69/28; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A COMPOSITION OF MATTER COMPRISING 100 PARTS OF A CELLULOSE ESTER HAVING AT LEAST 30% OF FATTY ACID GROUPS OF 3-4 CARBON ATOMS AND 10-50 PARTS OF AN ESTER SELECTED FROM THE GROUP CONSISTING OF THE 2-ETHYL BUTYRIC AND THE 2-ETHYL HEXOIC ACID ESTERS OF 2,2,4-TRIMETHYL PENTANE DIOL-1,3.
Claim 2
Dependent Claim
48 words
A COMPOSITION OF MATTER COMPRISING 100 PARTS OF A CELLULOSE ESTER HAVING AT LEAST 30% OF FATTY ACID GROUPS OF 3-4 CARBON ATOMS AND 10-50 PARTS OF AN ESTER SELECTED FROM THE GROUP CONSISTING OF THE 2-ETHYL BUTYRIC AND THE 2-ETHYL HEXOIC ACID ESTERS OF 2,2,4-TRIMETHYL PENTANE DIOL-1,3.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |