US3381145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistorized control circuit
Assignee: Individual
•
Filing: 1966-02-02
•
Granted: 1968-04-30
•
Expires: 1986-02-02
Abstract
No abstract record available.
Inventors
- 👤 Sterff Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:51
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/285; H02P7/29; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156; H03; H03K; H03K17/00; H03K17/12; H03K17/51; H03K17/56; H03K17/60; H03K17/64; Y; Y10; Y10S; Y10S388/00; Y10S388/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3061741A
Cited
US3092766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |