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US3407431A Expired / Lapsed US ⏱️ 0.0 years remaining

Powered tool for cleaning typewriter type

Assignee: STEVE J MELNIK
•
Filing: 1966-03-02
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Granted: 1968-10-29
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Expires: 1986-03-02
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Abstract

No abstract record available.

Inventors

  • 👤 Steve J Melnik

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 19:59
CPC Classifications
B; B25; B25F; B25F5/00; B25F5/008; B41; B41J; B41J29/00; B41J29/17

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

AT177213B Cited
GB896993A Cited
US3109238A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1971-10-29 1972-04-29 1972-10-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1975-10-29 1976-04-29 1976-10-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1979-10-29 1980-04-29 1980-10-29 $7700.00 Window Closed / Lapsed

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