US2716726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor control device
Assignee: ABB Norden Holding AB
•
Filing: 1951-05-01
•
Granted: 1955-08-30
•
Expires: 1971-05-01
Abstract
No abstract record available.
Inventors
- 👤 Lamm Uno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:07
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21407E
Cited
GB361107A
Cited
US1954884A
Cited
US1917146A
Cited
US1969520A
Cited
US1979890A
Cited
US2362569A
Cited
US2455869A
Cited
US2558086A
Cited
US2558094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-29 | 1959-02-28 | 1959-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-29 | 1963-02-28 | 1963-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-29 | 1967-02-28 | 1967-08-30 | $7700.00 | Window Closed / Lapsed |