Patent US1096518A successfully refreshed from Google Patents.
Patent US2480054A successfully refreshed from Google Patents.
US2480054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for stator fed alternating-current commutator motors
Assignee: Individual
•
Filing: 1948-02-28
•
Granted: 1949-08-23
•
Expires: 1968-02-28
Abstract
No abstract record available.
Inventors
- 👤 Schwarz Benno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:56
CPC Classifications
H; H02; H02K; H02K27/00; H02K27/12; H02P; H02P25/00; H02P25/02; H02P25/10; H02P25/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |