US3480695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyhydroxyether compositions containing polycarbonates
Assignee: Union Carbide Corp
•
Filing: 1965-12-14
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Granted: 1969-11-25
•
Expires: 1985-12-14
Abstract
No abstract record available.
Inventors
- 👤 Warren F Hale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:23
CPC Classifications
C; C08; C08L; C08L69/00; C08L71/00; Y; Y10; Y10S; Y10S525/00; Y10S525/93; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31511
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1365639A
Cited
DE1006776B
Cited
FR1309491A
Cited
US3225118A
Cited
US3221080A
Cited
US3238087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |