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US2391033A Expired / Lapsed US ⏱️ 0.0 years remaining

Drying hygroscopic plastics

Assignee: Food Concentrates Inc
•
Filing: 1942-03-28
•
Granted: 1945-12-18
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Expires: 1962-03-28
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Abstract

No abstract record available.

Inventors

  • 👤 Robert T Northcutt
  • 👤 Jr Robert T Northcutt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 06:56
CPC Classifications
C; C13; C13B; C13B50/00; C13B50/006; C13B50/008; A; A23; A23K; A23K10/00; A23K10/30; A23K10/33; B; B01; B01D; B01D1/00; B01D1/22; B01D1/222; B01D1/228; F; F26; F26B; F26B17/00; F26B17/28; F26B17/284; F26B17/286; Y; Y02; Y02P; Y02P60/00; Y02P60/80; Y02P60/87

Claims Analysis

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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1948-12-17 1949-06-18 1949-12-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1952-12-17 1953-06-18 1953-12-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1956-12-17 1957-06-18 1957-12-18 $7700.00 Window Closed / Lapsed

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