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US2691128A Expired / Lapsed US ⏱️ 0.0 years remaining

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Assignee: Siemens Schuckertwerke AG
•
Filing: 1951-09-26
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Granted: 1954-10-05
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Expires: 1971-09-26
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Abstract

No abstract record available.

Inventors

  • 👤 Wegener Johannes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 13:32
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/30; H02M7/32; H02M7/36

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

FR52280E Cited
US2465682A Cited
US2466864A Cited
US2568140A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1957-10-04 1958-04-05 1958-10-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1961-10-04 1962-04-05 1962-10-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1965-10-04 1966-04-05 1966-10-05 $7700.00 Window Closed / Lapsed

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