US2929014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid jet electric current converters
Assignee: Licentia Patent Verwaltungs GmbH
•
Filing: 1956-07-24
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Granted: 1960-03-15
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Expires: 1976-07-24
Abstract
No abstract record available.
Inventors
- 👤 Bohm Hellmuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:16
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/20; H02M1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US688068A
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US1390504A
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US1607141A
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US2144421A
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US2444687A
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US2782273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |