Patent JPS5216459A successfully refreshed from Google Patents.
US4765646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible shopping cart
Assignee: Individual
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Filing: 1986-12-22
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Granted: 1988-08-23
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Expires: 2006-12-22
Abstract
Abstract This invention relates to a collapsible shopping cart and in particular to one comprising a basket having a base support which enables it to sustain heavy loads without deforming and wheel assemblies which is easy to fit on the bottom of the basket, whereby the cart can receive, store and transport heavy articles. Furthermore, the cart is provided with wheels which are easily assembled.
Inventors
- 👤 Karen Cheng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:37
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/02; B62B3/027; B62B3/022; B62B5/00; B62B5/0013; B62B2205/00; B62B2205/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
256 words
In a collapsible shopping cart having a basket, a handle, and a pair of front and rear wheel assemblies, the basket comprising a front mesh panel surrounded by an inverted U-shaped frame, a rear mesh panel surrounded by an inverted U-shaped frame, a plurality of links connected between the frames of said front and rear mesh panels, a first transverse rod connected between the lower ends of the inverted U-shaped frame of said front mesh panel, a rear axle connected between the lower ends of the inverted U-shaped frame of said rear mesh panel and extending outwardly therefrom, said pair of rear wheel assemblies being secured to the ends of said rear axle, a lower mesh panel secured between said front and rear mesh panels, a pair of spaced longitudinal rods connected between said first transverse rod and said rear axle, a second transverse rod secured beneath said lower mesh panel and said longitudinal rods and being located substantially midway between said front and rear mesh panels, said handle having an inverted U-shape with downwardly extending leg portions, a front axle secured between the lowermost ends of said leg portions, said pair of front wheel assemblies being secured to said front axle, a third transverse rod connected between said leg portions at a spaced location above said front axle, two planar swing plates pivotally connected between said second transverse rod and said third transverse rod, and means for pivotally connecting an uppermost link on each side of said basket to a respective leg of said handle.
Claim 2
Dependent Claim
256 words
In a collapsible shopping cart having a basket, a handle, and a pair of front and rear wheel assemblies, the basket comprising a front mesh panel surrounded by an inverted U-shaped frame, a rear mesh panel surrounded by an inverted U-shaped frame, a plurality of links connected between the frames of said front and rear mesh panels, a first transverse rod connected between the lower ends of the inverted U-shaped frame of said front mesh panel, a rear axle connected between the lower ends of the inverted U-shaped frame of said rear mesh panel and extending outwardly therefrom, said pair of rear wheel assemblies being secured to the ends of said rear axle, a lower mesh panel secured between said front and rear mesh panels, a pair of spaced longitudinal rods connected between said first transverse rod and said rear axle, a second transverse rod secured beneath said lower mesh panel and said longitudinal rods and being located substantially midway between said front and rear mesh panels, said handle having an inverted U-shape with downwardly extending leg portions, a front axle secured between the lowermost ends of said leg portions, said pair of front wheel assemblies being secured to said front axle, a third transverse rod connected between said leg portions at a spaced location above said front axle, two planar swing plates pivotally connected between said second transverse rod and said third transverse rod, and means for pivotally connecting an uppermost link on each side of said basket to a respective leg of said handle.
Claim 3
Dependent Claim
39 words
The collapsible shopping cart as claimed in claim 1, wherein each said rear wheel assembly comprises a circular member, for receiving a respective end of said rear axle and a clip for fastening the axle to the circular member.
Claim 4
Dependent Claim
40 words
The collapsible shopping cart as claimed in claim 2, wherein said circular member has an axle hole and two vertically spaced protuberances, the upper one of said protuberances being triangular in shape while the lower one thereof is a trapezoid.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |