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US3045293A Expired / Lapsed US ⏱️ 0.0 years remaining

Support and sealing for lightweight panels

Assignee: Evans Products Co
•
Filing: 1956-10-15
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Granted: 1962-07-24
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Expires: 1976-10-15
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Abstract

No abstract record available.

Inventors

  • 👤 Joseph A Potchen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 11:54
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0832; E04F13/0833; E04F13/0835; E04F13/0837; E04B; E04B2/00; E04B2/56; E04B2/58; E04F13/0803; E04F13/081; E04F13/0821

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1675313A Cited
US2029352A Cited
US2054573A Cited
US2200649A Cited
US2317428A Cited
US2268147A Cited
US2328977A Cited
US2335302A Cited
US2438428A Cited
US2433772A Cited
US2857632A Cited
US2822584A Cited
US2890499A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-07-23 1966-01-22 1966-07-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-07-23 1970-01-22 1970-07-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-07-23 1974-01-22 1974-07-24 $7700.00 Window Closed / Lapsed

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