US2494516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acceleration control for direct-current motors
Assignee: Individual
•
Filing: 1945-04-11
•
Granted: 1950-01-10
•
Expires: 1965-04-11
Abstract
No abstract record available.
Inventors
- 👤 Mozzanini Georges Gabriel
- 👤 Colombes La Garenne
- 👤 Lebertre Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:38
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1305031A
Cited
US1089658A
Cited
US1190150A
Cited
US1441482A
Cited
US1905275A
Cited
US1943498A
Cited
US2315637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |