US2434916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trigger operated carrier telegraph transmitter
Assignee: STC PLC
•
Filing: 1943-09-08
•
Granted: 1948-01-27
•
Expires: 1963-09-08
Abstract
No abstract record available.
Inventors
- 👤 Everett Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:26
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/02; H04L27/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB166594A
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US2071759A
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US1776219A
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US1916404A
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US2056000A
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US1872940A
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GB373309A
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US1989510A
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US2211914A
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US2266401A
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US2250202A
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US2185192A
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US2185199A
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US2330638A
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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) | 1951-01-26 | 1951-07-28 | 1952-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-26 | 1955-07-28 | 1956-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-26 | 1959-07-28 | 1960-01-27 | $7700.00 | Window Closed / Lapsed |