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Assignee: RUDOLPH I SCHONITZER
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Filing: 1949-04-05
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Granted: 1952-07-22
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Expires: 1969-04-05
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Abstract

No abstract record available.

Inventors

  • 👤 Edwin L Allen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 20:53
CPC Classifications
E; E05; E05B; E05B1/00; E05B1/0038; Y; Y10; Y10S; Y10S292/00; Y10S292/37; Y10T; Y10T292/00; Y10T292/57

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1664576A Cited
US1932056A Cited
US2094413A Cited
US2231075A Cited
US2234810A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1955-07-22 1956-01-21 1956-07-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1959-07-22 1960-01-21 1960-07-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1963-07-22 1964-01-21 1964-07-22 $7700.00 Window Closed / Lapsed

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