US2906964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bias power supply source
Assignee: TDK Micronas GmbH
•
Filing: 1956-05-10
•
Granted: 1959-09-29
•
Expires: 1976-05-10
Abstract
No abstract record available.
Inventors
- 👤 Davidoff Dorsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:12
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2423931A
Cited
US2556934A
Cited
US2587175A
Cited
US2644917A
Cited
US2748272A
Cited
US2704330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |