US2454285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: FMC Corp
•
Filing: 1944-07-03
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Granted: 1948-11-23
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Expires: 1964-07-03
Abstract
No abstract record available.
Inventors
- 👤 Frank W Krueger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:40
CPC Classifications
B; B65; B65B; B65B3/00; B65B3/26; B67; B67C; B67C7/00; B67C7/0006; B67C7/004; B67C7/0046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1972841A
Cited
US2350438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-23 | 1952-05-24 | 1952-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-23 | 1956-05-24 | 1956-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-23 | 1960-05-24 | 1960-11-23 | $7700.00 | Window Closed / Lapsed |