US2479146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of vinyl esters and dioxolane
Assignee: EIDP Inc
•
Filing: 1945-12-07
•
Granted: 1949-08-16
•
Expires: 1965-12-07
Abstract
No abstract record available.
Inventors
- 👤 Wood William Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:51
CPC Classifications
C; C08; C08G; C08G4/00; C08G2/00; C08G2/06; C08G2/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2394862A
Cited
US2415638A
Cited
US2432601A
Cited
US2395292A
Cited
US2402137A
Cited
US2386347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |