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US2619294A Expired / Lapsed US ⏱️ 0.0 years remaining

Earth pulverizer with rock separating means

Assignee: Individual
•
Filing: 1949-08-13
•
Granted: 1952-11-25
•
Expires: 1969-08-13
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Abstract

No abstract record available.

Inventors

  • 👤 Mullner Louis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 19:33
CPC Classifications
B; B02; B02C; B02C13/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE172231C Cited
US61424A Cited
US431612A Cited
US775942A Cited
US889555A Cited
US973761A Cited
US1200384A Cited
US2213906A Cited
US2264049A Cited
US2353836A Cited
US2297604A Cited
US2484228A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1955-11-25 1956-05-26 1956-11-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1959-11-25 1960-05-26 1960-11-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1963-11-25 1964-05-26 1964-11-25 $7700.00 Window Closed / Lapsed

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