US2483408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relay circuit
Assignee: STC PLC
•
Filing: 1945-03-26
•
Granted: 1949-10-04
•
Expires: 1965-03-26
Abstract
No abstract record available.
Inventors
- 👤 Garber Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:31
CPC Classifications
H; H04; H04Q; H04Q1/00; H04Q1/18; H04Q1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1555893A
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FR619250A
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GB341831A
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FR721373A
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GB438535A
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US2080273A
Cited
US2182637A
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US2265203A
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US2205676A
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US2279849A
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US2270414A
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US2317888A
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US2389564A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |