Patent US2635967A successfully refreshed from Google Patents.
US2635967A
Expired / Lapsed
US
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Stabilized cellulose ester composition
Assignee: Eastman Kodak Co
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Filing: 1951-02-08
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Granted: 1953-04-21
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Expires: 1971-02-08
Abstract
No abstract record available.
Inventors
- 👤 William M Gearhart
- 👤 Robert W Pugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:59
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/175
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A COMPOSITION OF 100 PARTS OF A CELLULOSE ESTER SELECTED FROM A GROUP CONSISTING OF CELLULOSE ACETATE AND CELLULOSE ACETATE BUTYRATE, AND 0.01 TO 0.3 PART OF THE MAGNESIUM DISODIUM SALT OF ETHYLENE-BIS-IMINO-DIACETIC ACID.
Claim 2
Dependent Claim
34 words
A COMPOSITION OF 100 PARTS OF A CELLULOSE ESTER SELECTED FROM A GROUP CONSISTING OF CELLULOSE ACETATE AND CELLULOSE ACETATE BUTYRATE, AND 0.01 TO 0.3 PART OF THE MAGNESIUM DISODIUM SALT OF ETHYLENE-BIS-IMINO-DIACETIC ACID.
References Cited (Backward Citations)
GB129033A
Cited
US2086543A
Cited
US2413856A
Cited
US2438975A
Cited
US2452805A
Cited
US2498750A
Cited
US2535360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |