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US2310894A Expired / Lapsed US ⏱️ 0.0 years remaining

Dry flotation, and media and apparatus therefor

Assignee: Individual
•
Filing: 1941-01-22
•
Granted: 1943-02-09
•
Expires: 1961-01-22
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Abstract

No abstract record available.

Inventors

  • 👤 Brusset Jean Albert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 03:35
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/28; B03B5/30; B03B5/44; B03B5/442; B03B5/445; Y; Y10; Y10S; Y10S118/00; Y10S118/05

Claims Analysis

Total Claims: 0
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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) 1946-02-08 1946-08-10 1947-02-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1950-02-08 1950-08-10 1951-02-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1954-02-08 1954-08-10 1955-02-09 $7700.00 Window Closed / Lapsed

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