US1479174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulating system for induction motors
Assignee: Westinghouse Electric Corp
•
Filing: 1917-07-28
•
Granted: 1924-01-01
•
Expires: 1937-07-28
Abstract
No abstract record available.
Inventors
- 👤 Adolphus M Dudley
- 👤 Charles W Kincaid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:22
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/34; H02K17/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-12-31 | 1927-07-02 | 1928-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-12-31 | 1931-07-02 | 1932-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-12-31 | 1935-07-02 | 1936-01-01 | $7700.00 | Window Closed / Lapsed |