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US3200258A Expired / Lapsed US ⏱️ 0.0 years remaining

Time delay static switch with impedance matching and rapid reset means

Assignee: Allis Chalmers Corp
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Filing: 1961-06-15
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Granted: 1965-08-10
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Expires: 1981-06-15
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Abstract

No abstract record available.

Inventors

  • 👤 John T Carroll

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 23:25
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/73

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3017543A Cited
US2984753A Cited
US2867754A Cited
US3040237A Cited
US3045150A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-08-09 1969-02-08 1969-08-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-08-09 1973-02-08 1973-08-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-08-09 1977-02-08 1977-08-10 $7700.00 Window Closed / Lapsed

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