Patent US4854531A successfully refreshed from Google Patents.
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
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.
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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) | 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 |