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US2425634A Expired / Lapsed US ⏱️ 0.0 years remaining

Control method and arrangement for a two temperature refrigerator using a capillary expansion device

Assignee: Individual
•
Filing: 1943-03-01
•
Granted: 1947-08-12
•
Expires: 1963-03-01
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Muffly Glenn

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 12:39
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/325; F25B41/33; F25B2341/00; F25B2341/06; F25B2341/068; F25B2341/0683; F25D; F25D11/00; F25D11/02; F25D11/022

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) 1950-08-11 1951-02-10 1951-08-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1954-08-11 1955-02-10 1955-08-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1958-08-11 1959-02-10 1959-08-12 $7700.00 Window Closed / Lapsed

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