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US2991366A Expired / Lapsed US ⏱️ 0.0 years remaining

Semiconductor apparatus

Assignee: Individual
•
Filing: 1957-11-29
•
Granted: 1961-07-04
•
Expires: 1977-11-29
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Abstract

No abstract record available.

Inventors

  • 👤 Salzberg Bernard

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 15:02
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F30/29; H10F30/292; H10F99/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2670441A Cited
US2650311A Cited
US2692950A Cited
US2671154A Cited
US2774887A Cited
US2854651A Cited
US2753462A Cited
US2745973A Cited
US2777956A Cited
US2819442A Cited
US2867727A Cited
US2885562A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-07-03 1965-01-02 1965-07-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-07-03 1969-01-02 1969-07-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-07-03 1973-01-02 1973-07-04 $7700.00 Window Closed / Lapsed

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