Patent US2949260A successfully refreshed from Google Patents.
US2949260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load factor cut-out switch for aircraft
Assignee: North American Aviation Corp
•
Filing: 1954-01-04
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Granted: 1960-08-16
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Expires: 1974-01-04
Abstract
No abstract record available.
Inventors
- 👤 Robert E Smith
- 👤 Jr William D Mullins
- 👤 Jr Robert H Cannon
- 👤 Frederick W Morgenthaler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:31
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2017072A
Cited
US2302670A
Cited
US2487793A
Cited
US2702186A
Cited
US2672334A
Cited
US2508961A
Cited
US2776829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |