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US2165291A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of making pyroxylin coated materials

Assignee: ATHOL Manufacturing Co
•
Filing: 1939-01-19
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Granted: 1939-07-11
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Expires: 1959-01-19
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Abstract

No abstract record available.

Inventors

  • 👤 Rowland B Mitchell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 23:57
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C09D101/16; C09D101/18

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) 1942-07-10 1943-01-09 1943-07-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1946-07-10 1947-01-09 1947-07-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1950-07-10 1951-01-09 1951-07-11 $7700.00 Window Closed / Lapsed

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