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US2474952A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for heating and drying granular material in a continuously flowing stream

Assignee: Individual
•
Filing: 1944-09-30
•
Granted: 1949-07-05
•
Expires: 1964-09-30
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Abstract

No abstract record available.

Inventors

  • 👤 William J Miskella

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 18:01
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/28; F26B3/283; B; B29; B29B; B29B13/00; B29B13/06; B29B13/065; F26B17/00; F26B17/26; Y; Y10; Y10S; Y10S264/00; Y10S264/65

Claims Analysis

Total Claims: 0
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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) 1952-07-04 1953-01-03 1953-07-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1956-07-04 1957-01-03 1957-07-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1960-07-04 1961-01-03 1961-07-05 $7700.00 Window Closed / Lapsed

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