US3154514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylene oxide polymers having improved stress endurance
Assignee: Union Carbide Corp
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Filing: 1960-12-05
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Granted: 1964-10-27
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Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 Jr George B Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:30
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/02; C08K; C08K5/00; C08K5/04; C08K5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS FOR IMPROVING THE STRESS ENDURANCE OF ARTICLES COMPRISED ESSENTIALLY OF ETHYLENE OXIDE POLYMERS, SAID POLYMERS HAVING A REDUCED VISCOSITY VALUE OF AT LEAST 1.0 AS MEASURED AT A CONCENTRATION OF 0.2 GRAM OF SAID POLYMER IN 100 MILLILITERS OF ACETONITRILE AT 30*C., WHICH COMPRISES ADDING TO SAID POLYMER FROM ABOUT 1 TO ABOUT 50 WEIGHT PERCENT, BASED ON SAID POLYMER, OF A WATERSOLUBLE STRESS IMPROVING ADDITIVE HAVING THE FORMULA:
Claim 2
Dependent Claim
71 words
A PROCESS FOR IMPROVING THE STRESS ENDURANCE OF ARTICLES COMPRISED ESSENTIALLY OF ETHYLENE OXIDE POLYMERS, SAID POLYMERS HAVING A REDUCED VISCOSITY VALUE OF AT LEAST 1.0 AS MEASURED AT A CONCENTRATION OF 0.2 GRAM OF SAID POLYMER IN 100 MILLILITERS OF ACETONITRILE AT 30*C., WHICH COMPRISES ADDING TO SAID POLYMER FROM ABOUT 1 TO ABOUT 50 WEIGHT PERCENT, BASED ON SAID POLYMER, OF A WATERSOLUBLE STRESS IMPROVING ADDITIVE HAVING 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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |