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US3100879A Expired / Lapsed US ⏱️ 0.0 years remaining

Capacitance sensing circuit

Assignee: RTX Corp
•
Filing: 1959-05-08
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Granted: 1963-08-13
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Expires: 1979-05-08
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Abstract

No abstract record available.

Inventors

  • 👤 Orville V Greunke

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:41
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/66; H03M1/86

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

GB349496A Cited
GB353627A Cited
US2173427A Cited
US2761973A Cited
US2764643A Cited
US2894211A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-08-12 1967-02-11 1967-08-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-08-12 1971-02-11 1971-08-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-08-12 1975-02-11 1975-08-13 $7700.00 Window Closed / Lapsed

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