US3726536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple use collapsible cart
Assignee: LOIZARA Y ARINO F DE
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Filing: 1971-03-01
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Granted: 1973-04-10
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Expires: 1991-03-01
Abstract
Abstract A multi purpose two wheeled cart adapted to be employed selectively as a luggage carrier, a perambulator or a shopping cart. The device includes a main chassis to which is selectively attached a detachable upper carrier element. In detached condition, the main chassis element resembles a light weight hand truck, and may be employed for transporting baggage. In similarly detached condition, the upper chassis element may be suspended from an automotive seat back to serve as an infant carrier. In interconnected relation, the upper carrier element forms a seat of a perambulator, and the floor of the main chassis forms a foot rest. The seat-forming member may be removed from the upper carrier element to form an enclosing frame for maintaining a large bag or container upon the floor of the main chassis.
Inventors
- 👤 Loizara Y Arino F De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:09
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/10; B62B1/12; B62B2202/00; B62B2202/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
Improved multi-purpose cart construction comprising: a main chassis element including a generally horizontally disposed lower frame element and a pair of generally vertically disposed frames pivotally interconnected to said lower frame at mutually spaced locations at the rear of said lower frame; said pair of vertically disposed frames having means selectively interconnecting the upper ends thereof to form a rigid unit; manually engageable handle bar means interconnected to one of said vertically disposed frames, and wheeled means extending beneath said lower frame, a detachably associated upper carrier element, said main chassis element having relatively fixed laterally-extending pintles thereon, said upper carrier element including a vertically disposed frame overlying one of said vertically disposed frames of said main chassis element, and having means engaging said pintles to maintain said upper carrier element thereon.
Claim 2
Dependent Claim
132 words
Improved multi-purpose cart construction comprising: a main chassis element including a generally horizontally disposed lower frame element and a pair of generally vertically disposed frames pivotally interconnected to said lower frame at mutually spaced locations at the rear of said lower frame; said pair of vertically disposed frames having means selectively interconnecting the upper ends thereof to form a rigid unit; manually engageable handle bar means interconnected to one of said vertically disposed frames, and wheeled means extending beneath said lower frame, a detachably associated upper carrier element, said main chassis element having relatively fixed laterally-extending pintles thereon, said upper carrier element including a vertically disposed frame overlying one of said vertically disposed frames of said main chassis element, and having means engaging said pintles to maintain said upper carrier element thereon.
Claim 3
Dependent Claim
30 words
Structure in accordance with claim 1, including wheel guard means mounted on said lower frame, for preventing contact of an object placed upon said lower frame with said wheeled means.
Claim 4
Dependent Claim
30 words
Structure in accordance with claim 1, said upper carrier element including a pair of plates mounting said engaging means, and a generally U-shaped horizontally disposed frame supported by said plates.
Claim 5
Dependent Claim
17 words
Structure in accordance with claim 3, including flexible selectively detachable seat-forming means engaging said horizontally disposed frame.
Claim 6
Dependent Claim
37 words
Structure in accordance with claim 1, said upper carrier element including a pair of plates mounting said engaging means, a generally U-shaped horizontally disposed frame and pintle means pivotally interconnecting said plates and said horizontally disposed frame.
Claim 7
Dependent Claim
15 words
Structure in accordance with claim 1, including swivel hook means interconnecting said vertically disposed frames.
Claim 8
Dependent Claim
17 words
Structure in accordance with claim 1, including flexible selectively detachable seat-forming means engaging said horizontally disposed frame.
Claim 9
Dependent Claim
34 words
Structure in accordance with claim 7, said vertically disposed frame of said upper carrier element including a plurality of downwardly opening hook means for suspending saiD upper carrier element from a horizontally extending surface.
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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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |