US2570409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat back cushion spring construction
Assignee: Falls Spring & Wire Co
•
Filing: 1945-05-21
•
Granted: 1951-10-09
•
Expires: 1965-05-21
Abstract
No abstract record available.
Inventors
- 👤 Desire H Van Hove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:19
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B60N2/7047; B60N2/7058; B60N2/7064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US405821A
Cited
DE551627C
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US102386A
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US655756A
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GB190916814A
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US2022892A
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DE642873C
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US2148961A
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US2274176A
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US2118974A
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US2312411A
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US2293563A
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US2249048A
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US2364948A
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US2304651A
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US2420220A
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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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |