← Back to Patent Explorer
US4453788A Expired / Lapsed US ⏱️ 0.0 years remaining

Portable desk

Assignee: Individual
•
Filing: 1981-07-16
•
Granted: 1984-06-12
•
Expires: 2001-07-16
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A portable writing desk is the subject of the present invention. The desk is particularly designed for use on a vehicle steering wheel. A flat surface is provided for resting against the steering wheel and a plurality of hooks extend from the surface for engagement over the rim of the wheel. A writing surface is disposed in spaced relationship to the flat surface and is inclined in the same direction as the steering wheel. The writing surface is hinged so as to provide access to an inner cavity which holds papers, writing instruments, etc. The portable writing desk may also be used in the lap of a person or on a flat planar surface and, in this manner, provides for an incline writing surface that is comfortable and convenient.

Inventors

  • 👤 Jack M. Russell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 07:44
CPC Classifications
B; B43; B43L; B43L3/00; B43L3/008; B60; B60N; B60N3/00; B60N3/001; B60N3/002; B60N3/005

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 210 words
A portable writing desk for use in both a vehicle having a steering wheel inclined relative to the horizontal, and on a horizontal surface, said writing desk comprising: means presenting a flat surface; first and second hook means coupled with said surface and projecting away from it for engagement with said steering wheel, each of said hook means being characterized by a closed configuration of generally polygonal cross section, a flat bottom, and an absence of any open protrusions, so as to present a foot support for said flat surface presenting means when the latter is placed on said horizontal surface; a plurality of sidewalls coupled with said flat surface presenting means and projecting upwardly therefrom, said sidewalls increasing in height as they extend away from the end of said surface presenting means where said hook means are located; means presenting a writing surface and being hingedly coupled with one of said sidewalls at the same side of said surface presenting means as the side where said hook means are located, whereby when said hook means engage said steering wheel said writing surface is inclined toward said hook means and when said hook means are placed on a horizontal surface said writing surface is inclined away from said hook means.
Claim 2
Dependent Claim 210 words
A portable writing desk for use in both a vehicle having a steering wheel inclined relative to the horizontal, and on a horizontal surface, said writing desk comprising: means presenting a flat surface; first and second hook means coupled with said surface and projecting away from it for engagement with said steering wheel, each of said hook means being characterized by a closed configuration of generally polygonal cross section, a flat bottom, and an absence of any open protrusions, so as to present a foot support for said flat surface presenting means when the latter is placed on said horizontal surface; a plurality of sidewalls coupled with said flat surface presenting means and projecting upwardly therefrom, said sidewalls increasing in height as they extend away from the end of said surface presenting means where said hook means are located; means presenting a writing surface and being hingedly coupled with one of said sidewalls at the same side of said surface presenting means as the side where said hook means are located, whereby when said hook means engage said steering wheel said writing surface is inclined toward said hook means and when said hook means are placed on a horizontal surface said writing surface is inclined away from said hook means.
Claim 3
Dependent Claim 29 words
A device as set forth in claim 1, wherein each of said hook means is disposed entirely beneath said flat surface presenting means and in alignment with said sidewalls.
Claim 4
Dependent Claim 37 words
A device as set forth in claim 1, wherein is included means presenting ledges extending upwardly from said writing surface means at both the top and bottom thereof as said desk is disposed on said steering wheel.
Claim 5
Dependent Claim 19 words
A device as set forth in claim 3, wherein is included a tray member disposed inside of said compartment.
Claim 6
Dependent Claim 17 words
A device as set forth in claim 4, wherein is included divider means for partioning said compartment.
Claim 7
Dependent Claim 22 words
A device as set forth in claim 5, wherein is included handle means disposed outside of said compartment for carrying said device.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-06-12 1987-12-12 1988-06-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-06-12 1991-12-12 1992-06-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-06-12 1995-12-12 1996-06-12 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag