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US2517433A
Expired / Lapsed
US
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Chair structure
Assignee: American Seating Co
•
Filing: 1947-05-24
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Granted: 1950-08-01
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Expires: 1967-05-24
Abstract
No abstract record available.
Inventors
- 👤 Alfred C Hoven
- 👤 William S Lindberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:22
CPC Classifications
G; G09; G09F; G09F21/00; G09F21/04; B; B60; B60N; B60N2/00; B60N2/24; B60N2/242; G09F23/00; G09F2023/005; Y; Y10; Y10S; Y10S297/00; Y10S297/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |