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US2974286A Expired / Lapsed US ⏱️ 0.0 years remaining

Channel selector

Assignee: Laboratory For Electronics Inc
•
Filing: 1952-09-27
•
Granted: 1961-03-07
•
Expires: 1972-09-27
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Abstract

No abstract record available.

Inventors

  • 👤 Maurice A Meyer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:03
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/22; H03K5/24

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2551805A Cited
US2485665A Cited
US2507160A Cited
US2492780A Cited
US2488193A Cited
US2572912A Cited
US2628309A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-03-06 1964-09-05 1965-03-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-03-06 1968-09-05 1969-03-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-03-06 1972-09-05 1973-03-07 $7700.00 Window Closed / Lapsed

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