US3409581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyhydroxyether modified resole phenolic resins
Assignee: Union Carbide Corp
•
Filing: 1964-06-29
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Granted: 1968-11-05
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph W Hagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:44
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/04; C08L61/06; C08L71/00; C08L71/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2952040A
Cited
US2876208A
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US3008848A
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US3207652A
Cited
US3177090A
Cited
US3287205A
Cited
US3238087A
Cited
US3245925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |