US2452280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorbing seat structure for tractors
Assignee: ISAAC J FICKEL
•
Filing: 1944-11-29
•
Granted: 1948-10-26
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Expires: 1964-11-29
Abstract
No abstract record available.
Inventors
- 👤 Zahller Virgil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:41
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/502; B60N2/24; B60N2/38; B60N2/506; B60N2/54; B60N2/544
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US74208A
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US1426115A
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US1663112A
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US1961145A
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US2115830A
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US2162476A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |