US2897178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized poly(ethylene oxide)
Assignee: Union Carbide Corp
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Filing: 1956-05-29
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Granted: 1959-07-28
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Expires: 1976-05-29
Abstract
No abstract record available.
Inventors
- 👤 Fred N Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:10
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A COMPOSITION COMPRISING POLY(ETHYLENE OXIDE) HAVING A REDUCED VISCOSITY OF AT LEAST 1.0 AS MEASURED AT A CONCENTRATION OF 0.2 GRAM OF SAIS POLY(ETHYLENE OXIDE) IN 100 MILLILITERS OF ACETONITRILE AT 30*C., AND AS A STABILIZER THEREFOR A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
42 words
A COMPOSITION COMPRISING POLY(ETHYLENE OXIDE) HAVING A REDUCED VISCOSITY OF AT LEAST 1.0 AS MEASURED AT A CONCENTRATION OF 0.2 GRAM OF SAIS POLY(ETHYLENE OXIDE) IN 100 MILLILITERS OF ACETONITRILE AT 30*C., AND AS A STABILIZER THEREFOR A COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |