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US2633928A Expired / Lapsed US ⏱️ 0.0 years remaining

Dehumidifying apparatus

Assignee: Individual
•
Filing: 1946-09-28
•
Granted: 1953-04-07
•
Expires: 1966-09-28
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Chester A Chamberlain

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 21:36
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26; F; F26; F26B; F26B21/00; F26B21/30; F26B21/33; F26B21/331; Y; Y10; Y10S; Y10S55/00; Y10S55/17

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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US1499903A Cited
US1920914A Cited
US2095502A Cited
US2124268A Cited
US2083732A Cited
US2136618A Cited
US2075036A Cited
US2066847A Cited
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US2257487A Cited
US2248225A Cited
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US2221351A Cited
US2328129A Cited
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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) 1956-04-06 1956-10-06 1957-04-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-04-06 1960-10-06 1961-04-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-04-06 1964-10-06 1965-04-07 $7700.00 Window Closed / Lapsed

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