US2478451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of drying oils
Assignee: —
•
Filing: —
•
Granted: 1949-08-09
•
Expires: 1966-08-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:54
CPC Classifications
C; C11; C11B; C11B3/00; C11B3/02; C11B3/06; C09; C09F; C09F7/00; C09F7/06; F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1924524A
Cited
US2316187A
Cited
US2324432A
Cited
US1982707A
Cited
GB501670A
Cited
US2360632A
Cited
US2246007A
Cited
US2376088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-08 | 1953-02-07 | 1953-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-08 | 1957-02-07 | 1957-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-08 | 1961-02-07 | 1961-08-09 | $7700.00 | Window Closed / Lapsed |