US2925155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor system
Assignee: Individual
•
Filing: 1955-08-26
•
Granted: 1960-02-16
•
Expires: 1975-08-26
Abstract
No abstract record available.
Inventors
- 👤 Roger L Easton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:11
CPC Classifications
G; G05; G05G; G05G15/00; G05G15/06; H; H02; H02K; H02K11/00; H02K11/20; H02K11/21; H02K11/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US664190A
Cited
US786418A
Cited
US843981A
Cited
US1512890A
Cited
US1948037A
Cited
US1806332A
Cited
US2034233A
Cited
US2054479A
Cited
GB534994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |