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US3374159A Expired / Lapsed US ⏱️ 0.0 years remaining

Marking of steel strip electrolytically using electrolyte adhering to the strip

Assignee: Bethlehem Steel Corp
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Filing: 1965-02-09
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Granted: 1968-03-19
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Expires: 1985-02-09
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Abstract

No abstract record available.

Inventors

  • 👤 William D Poole

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 18:29
CPC Classifications
C; C25; C25F; C25F3/00; C25F3/02; C25F3/14

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2342811A Cited
US2513515A Cited
US2591042A Cited
US2933437A Cited
US3008892A Cited
US3152977A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1971-03-19 1971-09-18 1972-03-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1975-03-19 1975-09-18 1976-03-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1979-03-19 1979-09-18 1980-03-19 $7700.00 Window Closed / Lapsed

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