Patent US2655981A successfully refreshed from Google Patents.
US2655981A
Expired / Lapsed
US
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Adjustable pilot chair
Assignee: Individual
•
Filing: 1950-06-16
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Granted: 1953-10-20
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Expires: 1970-06-16
Abstract
No abstract record available.
Inventors
- 👤 John C Whittingham
- 👤 Proctor W Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:08
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/04; B60N2/16; B60N2/18; B60N2/1807; B60N2/1842; B60N2/1892; B60N2/1896; B60N2/22; B60N2/24; B60N2/242; B61; B61C; B61C17/00; B61C17/04; B61D; B61D33/00; B64; B64D; B64D11/00; B64D11/06; B64D11/0639; B64D11/064; B64D11/0644; B64D11/0648; B64D11/0689; B64D11/0696
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR853982A
Cited
US2292414A
Cited
US2367829A
Cited
US2383173A
Cited
US2485111A
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US2492105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |