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US3553919A Expired / Lapsed US ⏱️ 0.0 years remaining

Flooring systems

Assignee: AMERICAN SPORTS COURTS INC A PA CORP
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Filing: 1968-01-31
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Granted: 1971-01-12
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Expires: 1988-01-31
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Abstract

Abstract A FLOORING SYSTEM UTILIZING CONVENTIONAL TONGUE AND GROOVE WOOD FLOOR BOARDS, THE BOARDS BEING SUPPORTED ON TRANSVERSELY DISPOSED SPACED CHANNELS, METALLIC HOLDING CLIPS SECURING THE BOARDS IN BEARING ENGAGEMENT WITH THE CHANNELS, THE BOARDS BEING FREE FROM ANY SPECIAL SLOTS FOR CLIP ENGAGEMENT, SPACED PORTIONS OF THE TONGUES ABOVE THE CHANNELS BEING REMOVED TO ACCOMMODATE CLIP ENGAGEMENT, THE CLIPS ENGAGING THE BOARDS IN A DRIVEN PENETRATING RELATION AND/OR A CLAMPING ACTION WHICH DOES NOT INTERFERE WITH THE TIGHT VERTICAL ENGAGEMENT OF THE TONGUES AND GROOVES NOR CAUSE SPLITTING OF TE BOARDS, THE CLIPS ENGAGING THE CHANNELS EACH HAVING A BODY PORTION VERTICALLY DISPOSED BETWEEN THE BAORDS AND HAVING AT THE UPPER MARGIN OF THE BODY PORTION A HORIZONTALLY EXTENDING TOOTHED PORTION DRIVEN IN PENETRATING ENGAGEMENT INTO THE BOARD ALONG THE EDGE AT LOCATIONS ABOVE THE LOWER MARGIN OF THE TONGUE ON TE GONGUE SIDE OF THE BOARD, AND/OR A PENETRATING AND/OR CLAMPING PORTION ACTING IN THE GROOVE.

Inventors

  • 👤 Ray E Omholt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 10:50
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/04; E04F15/02044; E04F2015/0205; E04F2015/02066; E04F2015/02077; E04F2015/02083; E04F2015/02094; E04F2201/00; E04F2201/01; E04F2201/0107; E04F2201/02; E04F2201/023; E04F2201/04; E04F2201/042; E04F2201/05; E04F2201/0517

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) 1974-01-11 1974-07-13 1975-01-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-11 1978-07-13 1979-01-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-11 1982-07-13 1983-01-12 $7700.00 Window Closed / Lapsed

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