US2532108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static current converter with means for putting it out of function
Assignee: ABB Norden Holding AB
•
Filing: 1947-05-17
•
Granted: 1950-11-28
•
Expires: 1967-05-17
Abstract
No abstract record available.
Inventors
- 👤 Lamm Uno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:21
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/046; H02H; H02H7/00; H02H7/10; H02H7/12; H02H7/1209; H02H7/122; H02H7/125; H02H7/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2064021A
Cited
US2119865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |