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US2266916A Expired / Lapsed US ⏱️ 0.0 years remaining

Envelope opener

Assignee: Individual
•
Filing: 1941-06-16
•
Granted: 1941-12-23
•
Expires: 1961-06-16
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Abstract

No abstract record available.

Inventors

  • 👤 James W Steele

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:21
CPC Classifications
B; B43; B43M; B43M7/00; B43M7/002

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) 1944-12-22 1945-06-23 1945-12-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1948-12-22 1949-06-23 1949-12-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1952-12-22 1953-06-23 1953-12-23 $7700.00 Window Closed / Lapsed

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