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US4854531A Expired / Lapsed US ⏱️ 0.0 years remaining

Three legged workbench

Assignee: Individual
•
Filing: 1988-08-12
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Granted: 1989-08-08
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Expires: 2008-08-12
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Abstract

Abstract A collapsible workbench made up of three similar sections that are connected in assembly to form a three legged frame capable of supporting a flat panel or the like thereon.

Inventors

  • 👤 Joseph R. Esposito

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 15:03
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/02; B25H1/04; A; A47; A47B; A47B2230/00; A47B2230/0074; A47B2230/0085; F; F16; F16B; F16B2200/00; F16B2200/67

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 209 words
A workbench having an adjustable three legged support frame consisting of three interlocking leg and beam sections, each interlocking section including; a corner bracket that includes a pair of perpendicularly aligned hollow arms, said arms comprising a vertical disposed arm having an opening for receiving a leg member therein and horizontally disposed arm having an opening for receiving a beam member therein; a leg member removably received in said vertically disposed bracket opening so that the leg stands upright on a support surface; a beam member removably received in said horizontally disposed bracket opening; an angularly disposed open top notch passing downwardly through the top of said corner bracket a depth equal to the height of a beam member and forming an angle of 60 degrees with one side wall of the corner bracket to allow the distal end of a second beam member to be slidably received so that three of said leg and beam sections can be joined in assembly to form an adjustable triangular workbench frame by placing one end of a beam member in the horizontal arm of each bracket and the other end of each beam member in the notch of another bracket and a leg member in the vertical arm of each bracket.
Claim 2
Dependent Claim 209 words
A workbench having an adjustable three legged support frame consisting of three interlocking leg and beam sections, each interlocking section including; a corner bracket that includes a pair of perpendicularly aligned hollow arms, said arms comprising a vertical disposed arm having an opening for receiving a leg member therein and horizontally disposed arm having an opening for receiving a beam member therein; a leg member removably received in said vertically disposed bracket opening so that the leg stands upright on a support surface; a beam member removably received in said horizontally disposed bracket opening; an angularly disposed open top notch passing downwardly through the top of said corner bracket a depth equal to the height of a beam member and forming an angle of 60 degrees with one side wall of the corner bracket to allow the distal end of a second beam member to be slidably received so that three of said leg and beam sections can be joined in assembly to form an adjustable triangular workbench frame by placing one end of a beam member in the horizontal arm of each bracket and the other end of each beam member in the notch of another bracket and a leg member in the vertical arm of each bracket.
Claim 3
Dependent Claim 19 words
The workbench of claim 1 wherein the leg and the beam of each section is a rectangular shaped member.
Claim 4
Dependent Claim 24 words
The workbench of claim 1 further including removable fastening means for securing the leg and the beam in the corner bracket of each section.
Claim 5
Dependent Claim 19 words
The workbench of claim 1 wherein the corner bracket is formed from a single piece of high strength material.
Claim 6
Dependent Claim 24 words
The workbench of claim 1 wherein each section further includes adjusting means for setting the length of the leg with respect to the bracket.
Claim 7
Dependent Claim 29 words
The workbench of claim 2 wherein each corner bracket includes a pair of perpendicularly aligned hollow arms having rectangular shaped openings formed therein for slidably receiving said members therein.
Claim 8
Dependent Claim 18 words
The workbench of claim 1 that further includes a flat panel mounted on top of the connected sections.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-08-07 1993-02-06 1993-08-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-08-07 1997-02-06 1997-08-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-08-07 2001-02-06 2001-08-08 $7700.00 Window Closed / Lapsed

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