Patent US2383126A successfully refreshed from Google Patents.
US2383126A
Expired / Lapsed
US
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Spaced wave keying
Assignee: RCA Corp
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Filing: 1943-07-08
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Granted: 1945-08-21
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Expires: 1963-07-08
Abstract
No abstract record available.
Inventors
- 👤 Hollingsworth R Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:40
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/22; H04; H04L; H04L1/00; H04L1/02; H04L1/06; H04L27/00; H04L27/10; H04L27/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-08-20 | 1949-02-19 | 1949-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-08-20 | 1953-02-19 | 1953-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-08-20 | 1957-02-19 | 1957-08-21 | $7700.00 | Window Closed / Lapsed |