US3489698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable emulsions of incompatible polyols containing ethylene oxide-propylene oxide block copolymers as emulsifiers
Assignee: Union Carbide Corp
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Filing: 1967-05-03
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Granted: 1970-01-13
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Expires: 1987-05-03
Abstract
No abstract record available.
Inventors
- 👤 Edward L Morehouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:40
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/65; C08G18/66; C08G18/6666; C08G18/667; C08G18/6674; C08G18/6677; C08G18/40; C08G18/48; C08G18/4804; C08G18/4833; C08G18/4837; C08G18/4841; C08G18/6696; C08G2130/00
Claims Analysis
Total Claims: 0
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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) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |