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US2592401A Expired / Lapsed US ⏱️ 0.0 years remaining

Tobacco-smoking pipe bowl and stem cleaner

Assignee: Individual
•
Filing: 1949-01-11
•
Granted: 1952-04-08
•
Expires: 1969-01-11
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Abstract

No abstract record available.

Inventors

  • 👤 Fred G Enssle

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 00:22
CPC Classifications
A; A24; A24F; A24F3/00; A24F3/02

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1631467A Cited
US465727A Cited
US139828A Cited
US675612A Cited
US754884A Cited
GB190615167A Cited
US994913A Cited
US999331A Cited
GB200919A Cited
US1866446A Cited
US2099203A Cited
US2041469A Cited
US2417269A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1955-04-08 1955-10-08 1956-04-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1959-04-08 1959-10-08 1960-04-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1963-04-08 1963-10-08 1964-04-08 $7700.00 Window Closed / Lapsed

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