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US1328509A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of forming rings from solid bars

Assignee: Individual
•
Filing: 1917-06-21
•
Granted: 1920-01-20
•
Expires: 1937-06-21
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Abstract

No abstract record available.

Inventors

  • 👤 Joseph A Ganster

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 16:16
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/76; B21K1/761; B21H; B21H1/00; B21H1/06; B21K1/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49798; Y10T74/00; Y10T74/21; Y10T74/2142

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) 1923-01-19 1923-07-21 1924-01-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1927-01-19 1927-07-21 1928-01-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1931-01-19 1931-07-21 1932-01-20 $7700.00 Window Closed / Lapsed

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