US2474337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transport
Assignee: Celanese Corp
•
Filing: 1946-08-16
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Granted: 1949-06-28
•
Expires: 1966-08-16
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Sutherland
- 👤 William T Stearn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:39
CPC Classifications
B; B65; B65D; B65D19/00; B65D25/00; B65D25/02; B65D25/10; B65D25/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US870835A
Cited
US1488123A
Cited
US1705237A
Cited
US1666074A
Cited
US1828331A
Cited
FR47383E
Cited
US2349639A
Cited
US2856935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |