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US3525002A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric motor structure

Assignee: AIRCAP REALTY ASSOCIATES
•
Filing: 1968-10-16
•
Granted: 1970-08-18
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Expires: 1988-10-16
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Abstract

No abstract record available.

Inventors

  • 👤 Charles A Mattson
  • 👤 Alvin Romin Jr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 08:24
CPC Classifications
B; B25; B25F; B25F5/00; B25F5/008; E; E01; E01H; E01H5/00; E01H5/04; H; H02; H02K; H02K5/00; H02K5/04; H02K5/10; H02K5/14; H02K5/143; H02K5/148

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US945988A Cited
US1871835A Cited
US2958794A Cited
US3310691A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-08-17 1974-02-16 1974-08-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-08-17 1978-02-16 1978-08-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-08-17 1982-02-16 1982-08-18 $7700.00 Window Closed / Lapsed

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