US4404915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable desk-work bench
Assignee: Individual
•
Filing: 1980-12-18
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Granted: 1983-09-20
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Expires: 2000-12-18
Abstract
Abstract A work surface defining assembly is provided for use by seated persons. The assembly includes a horizontal upper work surface and includes remote transverser front and rear marginal portions. Depending front legs are supported from the assembly adjacent the opposite end portions of the front transverse marginal portion and the rear marginal portion includes transversely spaced downwardly facing abutment surface portions for engagement with and support from the upwardly facing upper surfaces of the horizontal upper leg portions of a seated person. The assembly also defines a downwardly opening cavity and the front legs and the assembly include coacting structure for upward folding of the legs into retracted positions within the cavity. In a first form of the invention, the abutment surface portions are carried by opposite end portions of a horizontal transverse foot mounted on the lower end of a short depending center rear leg which is adjustable in length and also foldable upwardly into the cavity and a second form of the invention includes a short depending rear leg also foldable upwardly into the cavity, but provided independent of the downwardly facing upper leg engageable abutment surfaces.
Inventors
- 👤 Lewis H. Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:33
CPC Classifications
A; A47; A47B; A47B23/00; A47B23/04; A47B23/041; A47B3/00; A47B3/08; A47B2003/0821
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
313 words
A work surface defining horizontal assembly for use by seated persons, said assembly including a horizontal upper surface defining a work surface, said assembly including remote transverse front and rear marginal portions, depending front legs supported from said assembly adjacent the opposite end portions of said front transverse marginal portion, the rear marginal portion of said assembly including transversely spaced downwardly facing abutment surface portions for engagement with and support from the upwardly facing upper surfaces of the horizontal upper leg portions of a seated person, said assembly defining a downwardly opening cavity, said legs and assembly including coacting means for upward folding of said legs into retracted positions within said cavity, said assembly including a rear leg dependingly supported from the central portion of the rear marginal portion of said assembly, said rear leg being considerably shorter than said front legs and disposed in a front to rear extending vertical plane disposed between said abutment surface portions, the lower end of said rear leg being shaped to abut and be supported from the central forward marginal portion of a seat upon which the user of said assembly is seated with said rear leg being downwardly received between the upper leg portions of the user, said rear leg and assembly including coacting means for upward folding of said rear leg into retracted position within said cavity, said rear leg and said front legs being foldable upwardly into front to rear extending positions within said cavity, said abutment surfaces being arcuate, extending longitudinally of said rear marginal portion and opening downwardly, said front legs, when folded, being disposed outwardly of remote sides of vertical front to rear extending planes containing the remote end portions of said arcuate abutment surface portions and said rear leg being disposed in a front to rear extending vertical plane spaced between the adjacent ends of said arcuate abutment surfaces.
Claim 2
Dependent Claim
313 words
A work surface defining horizontal assembly for use by seated persons, said assembly including a horizontal upper surface defining a work surface, said assembly including remote transverse front and rear marginal portions, depending front legs supported from said assembly adjacent the opposite end portions of said front transverse marginal portion, the rear marginal portion of said assembly including transversely spaced downwardly facing abutment surface portions for engagement with and support from the upwardly facing upper surfaces of the horizontal upper leg portions of a seated person, said assembly defining a downwardly opening cavity, said legs and assembly including coacting means for upward folding of said legs into retracted positions within said cavity, said assembly including a rear leg dependingly supported from the central portion of the rear marginal portion of said assembly, said rear leg being considerably shorter than said front legs and disposed in a front to rear extending vertical plane disposed between said abutment surface portions, the lower end of said rear leg being shaped to abut and be supported from the central forward marginal portion of a seat upon which the user of said assembly is seated with said rear leg being downwardly received between the upper leg portions of the user, said rear leg and assembly including coacting means for upward folding of said rear leg into retracted position within said cavity, said rear leg and said front legs being foldable upwardly into front to rear extending positions within said cavity, said abutment surfaces being arcuate, extending longitudinally of said rear marginal portion and opening downwardly, said front legs, when folded, being disposed outwardly of remote sides of vertical front to rear extending planes containing the remote end portions of said arcuate abutment surface portions and said rear leg being disposed in a front to rear extending vertical plane spaced between the adjacent ends of said arcuate abutment surfaces.
Claim 3
Dependent Claim
59 words
The combination of claim 1 wherein said assembly includes a rearwardly opening central drawer cavity and a horizontally shiftable drawer mounted within said drawer cavity for shifting between a forward position received within said downwardly opening cavity and a rearwardly displaced position projecting rearwardly from said rear marginal portion providing access to the interior of said drawer from above.
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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) | 1986-09-19 | 1987-03-21 | 1987-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-19 | 1991-03-21 | 1991-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-19 | 1995-03-21 | 1995-09-20 | $7700.00 | Window Closed / Lapsed |