US3400251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric control circuits
Assignee: Plessey Overseas Ltd
•
Filing: 1965-07-27
•
Granted: 1968-09-03
•
Expires: 1985-07-27
Abstract
No abstract record available.
Inventors
- 👤 Coyle Peter Augustine
- 👤 Reeves Albert George Michael
- 👤 Sanders David Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:51
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1906; G05D23/2451; G05D23/2456
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3176212A
Cited
GB892825A
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US3040157A
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US3226627A
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US3341769A
Cited
US3299346A
Cited
US3299345A
Cited
US3305766A
Cited
US3337792A
Cited
US3259825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |