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US2801308A Expired / Lapsed US ⏱️ 0.0 years remaining

Contact switch for material guiding device

Assignee: Individual
•
Filing: 1955-11-16
•
Granted: 1957-07-30
•
Expires: 1975-11-16
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Abstract

No abstract record available.

Inventors

  • 👤 Cubellis Guido

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 03:39
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/02; B65H23/0204; B65H23/0208; B21; B21D; B21D43/00; B21D43/02; B21D43/021; B21D43/023; B26; B26D; B26D7/00; B26D7/01; B26D7/015

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2185773A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-07-29 1961-01-28 1961-07-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-07-29 1965-01-28 1965-07-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-07-29 1969-01-28 1969-07-30 $7700.00 Window Closed / Lapsed

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