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US1013571A Expired / Lapsed US ⏱️ 0.0 years remaining

Envelop.

Assignee: Duplex Envelope & Printing Co
•
Filing: 1911-07-11
•
Granted: 1912-01-02
•
Expires: 1931-07-11
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Abstract

No abstract record available.

Inventors

  • 👤 Willis F Stevens

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 06:49
CPC Classifications
B; B42; B42D; B42D5/00; B42D5/02; B42D5/023; B42D5/025

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) 1915-01-01 1915-07-03 1916-01-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1919-01-01 1919-07-03 1920-01-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1923-01-01 1923-07-03 1924-01-02 $7700.00 Window Closed / Lapsed

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