US3095530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital control apparatus for wardleonard electrical machines
Assignee: Lancashire Dynamo Electronic Products Ltd
•
Filing: 1959-05-22
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Granted: 1963-06-25
•
Expires: 1979-05-22
Abstract
No abstract record available.
Inventors
- 👤 Woodward William Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:20
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/34; H02P7/347
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2448564A
Cited
US2461871A
Cited
US2726331A
Cited
US2748272A
Cited
US2848610A
Cited
US2753507A
Cited
US2864985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |