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US2483104A Expired / Lapsed US ⏱️ 0.0 years remaining

Filter for coffee makers

Assignee: Silex Co
•
Filing: 1945-03-28
•
Granted: 1949-09-27
•
Expires: 1965-03-28
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Abstract

No abstract record available.

Inventors

  • 👤 Reichold Ludwig

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 19:48
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/04; A47J31/043

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1006886A Cited
US1157778A Cited
US1634705A Cited
US1731698A Cited
US1967983A Cited
GB401322A Cited
US2234678A Cited
US2286254A Cited
US2370674A Cited
US2388335A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1952-09-26 1953-03-28 1953-09-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1956-09-26 1957-03-28 1957-09-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1960-09-26 1961-03-28 1961-09-27 $7700.00 Window Closed / Lapsed

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