Patent US4252371A successfully refreshed from Google Patents.
US4252371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lounge chair
Assignee: Individual
•
Filing: 1979-05-03
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Granted: 1981-02-24
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Expires: 1999-05-03
Abstract
Abstract There is provided a lounge chair with a seat portion and a back portion pivotally hinged to the seat portion. Two arm rest members are pivoted to the side edges of the back portion at intermediate locations, and a U-shaped support is provided for the forward ends of the arm rest members. The U-shaped support has a base member extending between two parallel upstanding side members, and the tops of the side members are pivoted to the arm rest members. The side members are further pivoted to the seat portion at intermediate locations, such that the base member is located in spaced arrangement under the seat portion. However, the U-shaped support is disposed such that its base member remains always clear of the ground, regardless of the attitude of the U-shaped support.
Inventors
- 👤 James A. Lehnen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:54
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/14; A47C1/143; A47C5/00; A47C5/04; A47C5/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
202 words
A lounge chair comprising: a seat portion having a rearward edge and leg means supporting the seat portion in a fixed position above the ground, a back portion having two side edges and a bottom edge, the back portion being pivotally hinged at its bottom edge to the rearward edge of the seat portion, and being capable of pivoting rearwardly, two arm rest members pivoted to the side edges of the back portion at locations substantially equally distant from the bottom edge thereof, and a U-shaped support distinct from said leg means, said U-shaped support having a base member extending between two parallel side members, the side members having their ends remote from the base member pivoted to said arm rest members at locations spaced from the back portion, the side members being further pivoted to the seat portion at locations intermediate the ends of the side members, whereby the base member is located under the seat portion, the distance from said locations to the said base member being less than the vertical distance from the seat portion to the ground, so that the base member of the U-shaped support remains clear of the ground in any attitude of the U-shaped support.
Claim 2
Dependent Claim
202 words
A lounge chair comprising: a seat portion having a rearward edge and leg means supporting the seat portion in a fixed position above the ground, a back portion having two side edges and a bottom edge, the back portion being pivotally hinged at its bottom edge to the rearward edge of the seat portion, and being capable of pivoting rearwardly, two arm rest members pivoted to the side edges of the back portion at locations substantially equally distant from the bottom edge thereof, and a U-shaped support distinct from said leg means, said U-shaped support having a base member extending between two parallel side members, the side members having their ends remote from the base member pivoted to said arm rest members at locations spaced from the back portion, the side members being further pivoted to the seat portion at locations intermediate the ends of the side members, whereby the base member is located under the seat portion, the distance from said locations to the said base member being less than the vertical distance from the seat portion to the ground, so that the base member of the U-shaped support remains clear of the ground in any attitude of the U-shaped support.
Claim 3
Dependent Claim
33 words
The lounge chair claimed in claim 1, in which said side members are substantially parallel with said back portion, and in which said arm rest members are substantially parallel with said seat portion.
Claim 4
Dependent Claim
27 words
The lounge chair claimed in claim 1, in which said side members, said arm rest members, said seat portion and said back portion define a parallelogram linkage.
Claim 5
Dependent Claim
76 words
The lounge chair claimed in claim 1 or claim 2, in which the base member is curved convexly toward the rear, as seen when the side members are vertical, such that when the back portion pivots rearwardly toward a horizontal position, the base member swings up under the seat portion and its curve is concave upwardly, thereby allowing for some depression of the seat portion due to the weight of the user of the lounge chair.
Claim 6
Dependent Claim
31 words
The lounge chair claimed in claim 4, in which said leg means are located forwardly and rearwardly of the locations at which said side members are pivoted to the seat portion.
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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) | 1984-02-24 | 1984-08-25 | 1985-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-24 | 1988-08-25 | 1989-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-24 | 1992-08-25 | 1993-02-24 | $7700.00 | Window Closed / Lapsed |