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US4971389A Expired / Lapsed US ⏱️ 0.0 years remaining

High chair attachment for chairs

Assignee: Individual
•
Filing: 1990-03-19
•
Granted: 1990-11-20
•
Expires: 2010-03-19
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Abstract

Abstract A temporary high chair conversion for an adult chair includes a child's eating tray horizontally disposed above an adult chair seat by a pair of U-shaped frame members removably supporting the tray and overlying the chair seat. The rearward end portions of the U-shaped frame members are connected with a pair of opposed chair back supporting standards by a telescoping tube and spring arrangement urging the semicircular chair back standard engaging members into frictional contact with the respective chair back standard.

Inventors

  • 👤 Raymond H. Staggs
  • 👤 Tony A. Clapp

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 10:44
CPC Classifications
A; A47; A47D; A47D1/00; A47D1/008; A47D1/0085; A47D11/00; A47D11/02

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 219 words
In an adult chair having a leg supported seat defined by front, rear and opposing side portions and having a backrest supported above the horizontal plane of the seat by back leg extended standards, the improvement comprising: a high chair feeding tray horizontally overlying the forward portion of said seat; rearwardly projecting bracket means underlying and removably supporting opposing end portions of said tray above said seat; said bracket means comprising an elongated tube doubled back upon itself to define a U-shape having a bight portion projecting forwardly of the chair seat and rearwardly projecting legs; a spring clip depending from the respective end portion of said tray and releasably gripping said tray underlying bracket means; back rest standard grip means secured to the rearward portion of said bracket means, said grip means including a pair of chair standard leg grips secured to the rearward end portion of said bracket legs, each grip of said pair of grips having a vertical recess cooperatively nesting an intermediate portion of a chair standard; resilient means maintaining said grip means in frictional gripping contact with said back rest standards, said resilient means comprising telescoping members interposed between and connected with the respective grip of said pair of grips; and, an expansion spring normally biasing said telescoping members toward a telescopically extended position.
Claim 2
Dependent Claim 219 words
In an adult chair having a leg supported seat defined by front, rear and opposing side portions and having a backrest supported above the horizontal plane of the seat by back leg extended standards, the improvement comprising: a high chair feeding tray horizontally overlying the forward portion of said seat; rearwardly projecting bracket means underlying and removably supporting opposing end portions of said tray above said seat; said bracket means comprising an elongated tube doubled back upon itself to define a U-shape having a bight portion projecting forwardly of the chair seat and rearwardly projecting legs; a spring clip depending from the respective end portion of said tray and releasably gripping said tray underlying bracket means; back rest standard grip means secured to the rearward portion of said bracket means, said grip means including a pair of chair standard leg grips secured to the rearward end portion of said bracket legs, each grip of said pair of grips having a vertical recess cooperatively nesting an intermediate portion of a chair standard; resilient means maintaining said grip means in frictional gripping contact with said back rest standards, said resilient means comprising telescoping members interposed between and connected with the respective grip of said pair of grips; and, an expansion spring normally biasing said telescoping members toward a telescopically extended position.

References Cited (Backward Citations)

US1043927A Cited
US2553122A Cited
US2658554A Cited
FR1054573A Cited
US2919748A Cited
US3369039A Cited
US3383134A Cited
US3516709A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-11-19 1994-05-21 1994-11-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-11-19 1998-05-21 1998-11-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-11-19 2002-05-21 2002-11-20 $7700.00 Window Closed / Lapsed

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