US2622228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plan position indicator circuits
Assignee: AC Cossor Ltd
•
Filing: 1951-02-05
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Granted: 1952-12-16
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Expires: 1971-02-05
Abstract
No abstract record available.
Inventors
- 👤 Jones Anthony Mervyn Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:27
CPC Classifications
H; H03; H03K; H03K6/00; H03K6/04; G; G01; G01S; G01S1/00; G01S1/02; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/10; G01S7/12; G01S7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2007380A
Cited
US2098390A
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US2436447A
Cited
US2466784A
Cited
US2439313A
Cited
US2565392A
Cited
US2553360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |