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US2045348A Expired / Lapsed US ⏱️ 0.0 years remaining

Manufacture of films, foils, and the like containing cellulose derivatives

Assignee: Henry Dreyfuss Associates LLC
•
Filing: 1933-08-25
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Granted: 1936-06-23
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Expires: 1953-08-25
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Abstract

No abstract record available.

Inventors

  • 👤 Dreyfus Henry

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 04:46
CPC Classifications
C; C08; C08L; C08L1/00; C08L1/08; C08L1/10; C08L1/12; B; B29; B29C; B29C41/00; B29C41/24; B29C41/26; C08J; C08J5/00; C08J5/18; B29K; B29K2201/00; B29K2201/08; C08J2301/00; C08J2301/08; C08J2301/10; C08J2301/12; C08J2301/14; C08J2301/16; C08J2301/18; C08J2301/20; C08J2301/26; C08J2301/28; C08J2301/30

Claims Analysis

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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) 1939-06-23 1939-12-23 1940-06-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1943-06-23 1943-12-23 1944-06-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1947-06-23 1947-12-23 1948-06-23 $7700.00 Window Closed / Lapsed

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