US2504518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic drying compositions
Assignee: Celanese Coatings Co
•
Filing: 1946-05-02
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Granted: 1950-04-18
•
Expires: 1966-05-02
Abstract
No abstract record available.
Inventors
- 👤 Greenlee Sylvan Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:27
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4292; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C08G59/1461
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2078239A
Cited
US1853049A
Cited
DE576177C
Cited
US2060715A
Cited
US2213477A
Cited
GB470181A
Cited
US2324483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |