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US689961A Expired / Lapsed US ⏱️ 0.0 years remaining

Pressure-exerting machine.

Assignee: Individual
•
Filing: 1901-07-29
•
Granted: 1901-12-31
•
Expires: 1921-07-29
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Abstract

No abstract record available.

Inventors

  • 👤 George W Greenwood

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 22:09
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/10; B30B1/14; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/1816; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2148; Y10T74/2149

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) 1904-12-30 1905-07-01 1905-12-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1908-12-30 1909-07-01 1909-12-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1912-12-30 1913-07-01 1913-12-31 $7700.00 Window Closed / Lapsed

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