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US3386588A Expired / Lapsed US ⏱️ 0.0 years remaining

Coolant filter

Assignee: Sundstrand Corp
•
Filing: 1966-10-14
•
Granted: 1968-06-04
•
Expires: 1986-10-14
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Abstract

No abstract record available.

Inventors

  • 👤 Lewis B Ades

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 19:33
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/24; B04C5/28

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2378632A Cited
US2954871A Cited
US3057476A Cited
US3261467A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1971-06-04 1971-12-04 1972-06-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1975-06-04 1975-12-04 1976-06-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1979-06-04 1979-12-04 1980-06-04 $7700.00 Window Closed / Lapsed

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