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US2419782A Expired / Lapsed US ⏱️ 0.0 years remaining

Printing telegraph apparatus

Assignee: AT&T Teletype Corp
•
Filing: 1944-01-18
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Granted: 1947-04-29
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Expires: 1964-01-18
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Abstract

No abstract record available.

Inventors

  • 👤 Ross A Lake

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 18:23
CPC Classifications
H; H04; H04L; H04L17/00; H04L17/16; H04L17/20

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1721952A Cited
US1848320A Cited
US1912183A Cited
US2338131A Cited
US2318168A Cited
US2348214A Cited
US2344792A Cited

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

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