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US2474609A Expired / Lapsed US ⏱️ 0.0 years remaining

Safety knife

Assignee: ALBERT IRVIN JACKSON
•
Filing: 1946-03-07
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Granted: 1949-06-28
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Expires: 1966-03-07
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Abstract

No abstract record available.

Inventors

  • 👤 Allen C Wolf

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 08:14
CPC Classifications
B; B26; B26B; B26B1/00; B26B1/08

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE102546C Cited
US2237331A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1952-06-27 1952-12-27 1953-06-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1956-06-27 1956-12-27 1957-06-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1960-06-27 1960-12-27 1961-06-28 $7700.00 Window Closed / Lapsed

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