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US2419730A
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US
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Printing telegraph system having serially connected, step-by-step automatically selective stations
Assignee: AT&T Teletype Corp
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Filing: 1944-02-28
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Granted: 1947-04-29
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Expires: 1964-02-28
Abstract
No abstract record available.
Inventors
- 👤 Louis M Potts
- 👤 Reginald G Schuler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:15
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |