US2534387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Morse code printing system
Assignee: RCA Corp
•
Filing: 1946-11-15
•
Granted: 1950-12-19
•
Expires: 1966-11-15
Abstract
No abstract record available.
Inventors
- 👤 Lewis A Thomas
- 👤 James A Spencer
- 👤 Eugene R Shenk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:33
CPC Classifications
H; H04; H04L; H04L15/00; H04L15/24; H04L15/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1805114A
Cited
US2094733A
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US2289988A
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US2289987A
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US2429500A
Cited
US2418521A
Cited
US2384513A
Cited
US2425063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |