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US488643A Expired / Lapsed US ⏱️ 0.0 years remaining

Machine for reaming holes in spool-blocks

Assignee: —
•
Filing: —
•
Granted: 1892-12-27
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Expires: 1909-12-27
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Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 08:10
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/02; B23Q3/06; B23Q3/062; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/553; Y10T408/56; Y10T408/561; Y10T408/5623; Y10T408/56253

Claims Analysis

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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1895-12-27 1896-06-27 1896-12-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1899-12-27 1900-06-28 1900-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1903-12-28 1904-06-28 1904-12-28 $7700.00 Window Closed / Lapsed

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