US2480185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of mixtures of polyoxyalkylene monohydroxy compounds
Assignee: Carbide and Carbon Chemicals Corp
•
Filing: 1947-07-25
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Granted: 1949-08-30
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Expires: 1967-07-25
Abstract
No abstract record available.
Inventors
- 👤 Harvey R Fife
- 👤 Frederick H Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:32
CPC Classifications
D; D06; D06M; D06M7/00; D06M2200/00; D06M2200/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1739315A
Cited
US2269529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |