US2499225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data transmission system
Assignee: RCA Corp
•
Filing: 1947-11-26
•
Granted: 1950-02-28
•
Expires: 1967-11-26
Abstract
No abstract record available.
Inventors
- 👤 John N Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:42
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/78; Y; Y10; Y10S; Y10S246/00; Y10S246/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1894019A
Cited
US2110015A
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US2252083A
Cited
US2378604A
Cited
US2403603A
Cited
US2408037A
Cited
US2405597A
Cited
US2438904A
Cited
US2430547A
Cited
US2415359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |