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US917115A Expired / Lapsed US ⏱️ 0.0 years remaining

Telephone toll-box.

Assignee: WILLIAM E GREGG
•
Filing: 1907-12-05
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Granted: 1909-04-06
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Expires: 1927-12-05
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Abstract

No abstract record available.

Inventors

  • 👤 Walter T Otto
  • 👤 Johnson R Douglass

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 23:32
CPC Classifications
G; G07; G07F; G07F9/00; G07F9/06

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1912-04-05 1912-10-05 1913-04-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1916-04-05 1916-10-05 1917-04-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1920-04-05 1920-10-05 1921-04-06 $7700.00 Window Closed / Lapsed

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