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US563651A Expired / Lapsed US ⏱️ 0.0 years remaining

boiler-flue cleaner

Assignee: Individual
•
Filing: 1896-06-08
•
Granted: 1896-07-07
•
Expires: 1916-06-08
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Abstract

No abstract record available.

Inventors

  • 👤 George O Brooks

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 00:56
CPC Classifications
F; F23; F23J; F23J3/00; F23J3/02; F23J3/026; F41; F41A; F41A29/00; F41A29/02; Y; Y10; Y10T; Y10T29/00; Y10T29/47

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1899-07-07 1900-01-06 1900-07-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1903-07-08 1904-01-07 1904-07-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1907-07-08 1908-01-07 1908-07-08 $7700.00 Window Closed / Lapsed

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