Patent US4740983A successfully refreshed from Google Patents.
US4046401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding baby carriage
Assignee: Aprica Kassai KK
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Filing: 1976-05-24
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Granted: 1977-09-06
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Expires: 1996-05-24
Abstract
Abstract A highly safe folding baby carriage which can be opened or folded by a simple operation. The baby carriage includes a pair of front legs, a pair of rear legs pivotally connected to the front legs and a pair of supporting bars which are connected backwardly rotatable to the top of the front legs. Three pairs of connecting bars are provided. Respective first ends of which are pivotally connected to the front legs, the rear legs, or supporting bars respectively. A pivoting bar pivotally connects all of the other ends of three pairs of connecting bars. The pivoting bar makes the carriage stable in its opened state, being in contact with the back faces of the rear legs.
Inventors
- 👤 Kenzou Kassai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:55
CPC Classifications
B; B62; B62B; B62B7/00; B62B7/04; B62B7/06; B62B7/08; B62B7/064
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
212 words
A folding baby carriage comprising: a pair of front leg members provided with front wheels rotatably mounted on lower ends thereof; a pair of rear leg members pivotally connected to said front leg members and provided with rear wheels rotatably mounted on lower ends thereof, said rear legs being a first U-shaped bar having a center portion which forms a protecting portion; a pair of supporting bars which are connected backwardly rotatable to upper ends of said front leg members by rotatable joints, said supporting bars being a second U-shaped bar having a center portion which forms a handle; a pair of first connecting bars respective first ends of which are pivotally connected to said front leg members by a first reinforcement bar positioned transversely between said front leg members; a pair of second connecting bars respective first ends of which are pivotally connected to said rear leg members by a second reinforcement bar positioned transversely between said rear leg members; a pair of third connecting bars and attachment means, first ends of said pair of said third connecting bars being pivotally connected to said pair of supporting bars by said attachment means; and a pivoting bar pivotally connecting all other ends of said pairs of first, second and third connecting bars.
Claim 2
Dependent Claim
212 words
A folding baby carriage comprising: a pair of front leg members provided with front wheels rotatably mounted on lower ends thereof; a pair of rear leg members pivotally connected to said front leg members and provided with rear wheels rotatably mounted on lower ends thereof, said rear legs being a first U-shaped bar having a center portion which forms a protecting portion; a pair of supporting bars which are connected backwardly rotatable to upper ends of said front leg members by rotatable joints, said supporting bars being a second U-shaped bar having a center portion which forms a handle; a pair of first connecting bars respective first ends of which are pivotally connected to said front leg members by a first reinforcement bar positioned transversely between said front leg members; a pair of second connecting bars respective first ends of which are pivotally connected to said rear leg members by a second reinforcement bar positioned transversely between said rear leg members; a pair of third connecting bars and attachment means, first ends of said pair of said third connecting bars being pivotally connected to said pair of supporting bars by said attachment means; and a pivoting bar pivotally connecting all other ends of said pairs of first, second and third connecting bars.
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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |