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US2464870A Expired / Lapsed US ⏱️ 0.0 years remaining

Oil filter

Assignee: Motors Liquidation Co
•
Filing: 1945-03-24
•
Granted: 1949-03-22
•
Expires: 1965-03-24
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Abstract

No abstract record available.

Inventors

  • 👤 Herbert G Kamrath

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 20:05
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/22; B01D25/24; B01D35/00; B01D35/14; B01D35/147

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1742743A Cited
US1742768A Cited
US1805903A Cited
US1821082A Cited
US1918980A Cited
US1909308A Cited
US1937415A Cited
US2081353A Cited
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US2158512A Cited
US2221465A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1952-03-21 1952-09-20 1953-03-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1956-03-21 1956-09-20 1957-03-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1960-03-21 1960-09-20 1961-03-22 $7700.00 Window Closed / Lapsed

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