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US2968293A Expired / Lapsed US ⏱️ 0.0 years remaining

Internal combustion engine

Assignee: Motors Liquidation Co
•
Filing: 1958-12-31
•
Granted: 1961-01-17
•
Expires: 1978-12-31
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Abstract

No abstract record available.

Inventors

  • 👤 Adelbert E Kolbe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 18:58
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/24; F02B75/243; F02B75/02; F02B2075/022; F02B2075/027; F02B2075/1804; F02B2075/1824

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1857077A Cited
DE759206C Cited
US2515347A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-01-17 1964-07-18 1965-01-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-01-17 1968-07-18 1969-01-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-01-17 1972-07-18 1973-01-17 $7700.00 Window Closed / Lapsed

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