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US2968444A Expired / Lapsed US ⏱️ 0.0 years remaining

Refining discs

Assignee: E D JONES CORP
•
Filing: 1956-11-07
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Granted: 1961-01-17
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Expires: 1976-11-07
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Abstract

No abstract record available.

Inventors

  • 👤 Dwight E Jones

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 19:13
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/30

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US18848A Cited
US310940A Cited
US492239A Cited
US539704A Cited
GB331567A Cited
FR950168A Cited
US2654295A Cited
US2682810A Cited
US2690098A Cited
US2651976A Cited
US2778282A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-01-17 1964-07-18 1965-01-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-01-17 1968-07-18 1969-01-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-01-17 1972-07-18 1973-01-17 $7700.00 Window Closed / Lapsed

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