US2771377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic compositions of watersoluble cellulose ethers
Assignee: Dow Chemical Co
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Filing: 1953-11-25
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Granted: 1956-11-20
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Expires: 1973-11-25
Abstract
No abstract record available.
Inventors
- 👤 Jr George K Greminger
- 👤 Miles A Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A THERMOPLASTIC COMPOSITION CONSISTING OF FROM 5 TO 80 PERCENT OF A WATER-SOLUBLE CELLULOSE ETHER SELECTED FROM THE GROUP OF ALKYL CELLULOSE, HYDROXYALKYL CELLULOSE, AND ALKYL HYDROXYALKYL CELLULOSE IN WHICH THE ALKYL GROUP CONTAINS FROM 1 TO 3 CARBON ATOMS AND THE HYDROXYALKYL GROUP CONTAINS FROM 2 TO 3 CARBON ATOMS, AND CORRESPONDINGLY FROM 95 TO 20 PERCENT OF AN AMINE SELECTED FROM THE GROUP CONSISTING OF MONOETHANOLAMINE, MONOISOPROPANOLAMINE, AND TRIETHYLENE TETRAMINE.
Claim 2
Dependent Claim
72 words
A THERMOPLASTIC COMPOSITION CONSISTING OF FROM 5 TO 80 PERCENT OF A WATER-SOLUBLE CELLULOSE ETHER SELECTED FROM THE GROUP OF ALKYL CELLULOSE, HYDROXYALKYL CELLULOSE, AND ALKYL HYDROXYALKYL CELLULOSE IN WHICH THE ALKYL GROUP CONTAINS FROM 1 TO 3 CARBON ATOMS AND THE HYDROXYALKYL GROUP CONTAINS FROM 2 TO 3 CARBON ATOMS, AND CORRESPONDINGLY FROM 95 TO 20 PERCENT OF AN AMINE SELECTED FROM THE GROUP CONSISTING OF MONOETHANOLAMINE, MONOISOPROPANOLAMINE, AND TRIETHYLENE TETRAMINE.
References Cited (Backward Citations)
US2199927A
Cited
US2240151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |