US2425314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse communication system
Assignee: RCA Corp
•
Filing: 1943-09-16
•
Granted: 1947-08-12
•
Expires: 1963-09-16
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Hansell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:09
CPC Classifications
H; H04; H04B; H04B14/00; H04B14/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1742902A
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GB357024A
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US2045224A
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US2110548A
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US2199179A
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US2266401A
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US2262838A
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US2199634A
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US2328944A
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US2286377A
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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) | 1950-08-11 | 1951-02-10 | 1951-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-11 | 1955-02-10 | 1955-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-11 | 1959-02-10 | 1959-08-12 | $7700.00 | Window Closed / Lapsed |