US3046495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-voltage inverter using lowvoltage transistors
Assignee: LENKURT ELECTRIC CO Inc
•
Filing: 1957-09-27
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Granted: 1962-07-24
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Expires: 1977-09-27
Abstract
No abstract record available.
Inventors
- 👤 Alfred M Faries
- 👤 Maurice C Harp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:38
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/53; H02M7/537; H02M7/5383; H02M7/53832; H02M7/53835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2299094A
Cited
GB536516A
Cited
US2621319A
Cited
US2783384A
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US2830200A
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US2852730A
Cited
US2826731A
Cited
US2874293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |