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US1504703A Expired / Lapsed US ⏱️ 0.0 years remaining

Knife-feeding mechanism for rubber and fabric cutting machines

Assignee: BLACK ROCK Manufacturing Co
•
Filing: 1923-03-20
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Granted: 1924-08-12
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Expires: 1943-03-20
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Abstract

No abstract record available.

Inventors

  • 👤 Nicholas William

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 16:57
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/26; B26D3/00; B26D3/16; Y; Y10; Y10T; Y10T82/00; Y10T82/16; Y10T82/16065; Y10T82/16426; Y10T82/16591; Y10T82/16951; Y10T83/00; Y10T83/263

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) 1927-08-12 1928-02-11 1928-08-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1931-08-12 1932-02-11 1932-08-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1935-08-12 1936-02-11 1936-08-12 $7700.00 Window Closed / Lapsed

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