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US2497936A
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Assignee: RCA Corp
•
Filing: 1946-10-18
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Granted: 1950-02-21
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Expires: 1966-10-18
Abstract
No abstract record available.
Inventors
- 👤 Finch James Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:17
CPC Classifications
H; H04; H04L; H04L15/00; H04L15/24; H04L15/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1193807A
Cited
US1205460A
Cited
US1719535A
Cited
US2131202A
Cited
US2111154A
Cited
US2354733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |