Patent US2934606A successfully refreshed from Google Patents.
US2934606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selector circuit
Assignee: Stromberg Carlson Corp
•
Filing: 1956-10-08
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Granted: 1960-04-26
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Expires: 1976-10-08
Abstract
No abstract record available.
Inventors
- 👤 Robert B Trousdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:43
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2492136A
Cited
US2490833A
Cited
US2666809A
Cited
US2619548A
Cited
US2770678A
Cited
US2716159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |