US3051793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic selection circuits
Assignee: Siemens and Halske AG
•
Filing: 1958-03-18
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Granted: 1962-08-28
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Expires: 1978-03-18
Abstract
No abstract record available.
Inventors
- 👤 Hiller Rolf
- 👤 Bavaria Upper
- 👤 Rutkowski Karl
- 👤 Krageloh Werner
- 👤 Voegtlen Dieter
- 👤 Zahlhaas Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:45
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/52; H04Q3/521; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/62; H03K17/6242; H03K17/6257; H03K17/74; H03K17/80; H03K17/81
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |