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US1971852A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for stirring up farinaceous materials in receptacles of any kind by compressed air, compressed gas, or the like

Assignee: FIRM G POLYSIUS AG
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Filing: 1932-06-01
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Granted: 1934-08-28
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Expires: 1952-06-01
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Abstract

No abstract record available.

Inventors

  • 👤 Goebels Paul

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 02:35
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/72; B01; B01F; B01F33/00; B01F33/40; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/44

Claims Analysis

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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) 1937-08-27 1938-02-26 1938-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1941-08-27 1942-02-26 1942-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1945-08-27 1946-02-26 1946-08-28 $7700.00 Window Closed / Lapsed

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