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US2994450A Expired / Lapsed US ⏱️ 0.0 years remaining

Sectional cellaret

Assignee: CAROLYN BOWNE DE VAN
•
Filing: 1957-02-06
•
Granted: 1961-08-01
•
Expires: 1977-02-06
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Abstract

No abstract record available.

Inventors

  • 👤 Carolyn Bowne Van De
  • 👤 William T Van De

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 02:28
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/02; B65D21/0201; B65D21/0204

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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US266577A Cited
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US476697A Cited
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US2810171A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-07-31 1965-01-30 1965-08-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-07-31 1969-01-30 1969-08-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-07-31 1973-01-30 1973-08-01 $7700.00 Window Closed / Lapsed

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