Patent US2647484A successfully refreshed from Google Patents.
US2647484A
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US
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Locking device for indicating and control apparatus
Assignee: Boeing Co
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Filing: 1951-06-19
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Granted: 1953-08-04
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Expires: 1971-06-19
Abstract
No abstract record available.
Inventors
- 👤 Theodore M Mathison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:19
CPC Classifications
G; G01; G01D; G01D11/00; G01D11/24; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17291; Y10T279/17299
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US251876A
Cited
US1400421A
Cited
US1420295A
Cited
US1491342A
Cited
US1907806A
Cited
US2401351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |