US3343014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronous motors
Assignee: Evershed and Vignoles Ltd
•
Filing: 1964-11-10
•
Granted: 1967-09-19
•
Expires: 1984-11-10
Abstract
No abstract record available.
Inventors
- 👤 Giles Alan Robert Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
H; H02; H02K; H02K37/00; H02K37/10; H02K37/12; H02K37/14; H02K37/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2982872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |