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US2629776A
Expired / Lapsed
US
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Telegraph receiver
Assignee: International Standard Electric Corp
•
Filing: 1952-03-14
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Granted: 1953-02-24
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Expires: 1972-03-14
Abstract
No abstract record available.
Inventors
- 👤 Terry Victor John
- 👤 Holland John Douglas
- 👤 James Ivor Reginald John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:10
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/10; H04L27/16; H03; H03J; H03J7/00; H03J7/02; H03J7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1921022A
Cited
US2457268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |