Patent US2743408A successfully refreshed from Google Patents.
US2743408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor control
Assignee: Individual
•
Filing: 1944-07-04
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Granted: 1956-04-24
•
Expires: 1964-07-04
Abstract
No abstract record available.
Inventors
- 👤 Otto H Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:20
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32; H02; H02P; H02P7/00; H02P7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US688614A
Cited
US972536A
Cited
US1042444A
Cited
US1027072A
Cited
US1682541A
Cited
US1993720A
Cited
US2363132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |