US2576268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose ester plasticized with a 1-4 butandiol diester
Assignee: Celanese Corp
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Filing: 1947-05-24
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Granted: 1951-11-27
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Expires: 1967-05-24
Abstract
No abstract record available.
Inventors
- 👤 Gershon J Shugar
- 👤 Walter D Paist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:42
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; C07; C07C; C07C67/00; C07C67/10; C07C67/24; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A THERMOPLASTIC COMPOSITION OF MATTER COMPRISING ESSENTIALLY AN ORGANIC ACID ESTER OF CELLULOSE PLASTICIZED WITH A MEMBER OF THE GROUP CONSISTING OF 1,4-BUTANEDIOL-DILAURATED, 1-4-BUTANEDIOL-DI 2 -ETHYLHEXOATE AND 1,4 - BUTANEDIOL-DICYCLOHEXYL-ACETATE.
Claim 2
Dependent Claim
30 words
A THERMOPLASTIC COMPOSITION OF MATTER COMPRISING ESSENTIALLY AN ORGANIC ACID ESTER OF CELLULOSE PLASTICIZED WITH A MEMBER OF THE GROUP CONSISTING OF 1,4-BUTANEDIOL-DILAURATED, 1-4-BUTANEDIOL-DI 2 -ETHYLHEXOATE AND 1,4 - BUTANEDIOL-DICYCLOHEXYL-ACETATE.
References Cited (Backward Citations)
US2299862A
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US2366667A
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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) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |