US3638588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible stool
Assignee: Individual
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Filing: 1969-11-19
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Granted: 1972-02-01
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Expires: 1989-11-19
Abstract
Abstract A plurality of part-cylindrical legs are pivotally joined to a like plurality of struts so that the legs and struts extend away from each other in diverging directions for respectively resting on the earth and supporting a seat. When the struts are in a collapsed position they form a cylindrical seat nesting tube telescopically received by the tube formed by the legs when collapsed.
Inventors
- 👤 Bobby R Abbott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:15
CPC Classifications
A; A47; A47C; A47C9/00; A47C9/10; A47C9/105
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
137 words
A collapsible stool, comprising: a first tubular member longitudinally divided to form a plurality of legs, each said leg having a longitudinally extending tongue groove formed in its inwardly disposed surface; a second tubular member telescopingly received by said first tubular member and being longitudinally divided to form a like plurality of struts; a T-shaped tongue secured to the outer surface of the depending end portion of each said strut slidably received by the respective tongue groove; means connecting each said strut with a respective one of said legs permitting upwardly diverging movement of said struts when disposed above said legs; ring means surrounding and holding one end portion of said legs and said struts together and permitting downwardly diverging movement of said legs; and, a fabric seat secured to the upper end portion of said struts.
Claim 2
Dependent Claim
137 words
A collapsible stool, comprising: a first tubular member longitudinally divided to form a plurality of legs, each said leg having a longitudinally extending tongue groove formed in its inwardly disposed surface; a second tubular member telescopingly received by said first tubular member and being longitudinally divided to form a like plurality of struts; a T-shaped tongue secured to the outer surface of the depending end portion of each said strut slidably received by the respective tongue groove; means connecting each said strut with a respective one of said legs permitting upwardly diverging movement of said struts when disposed above said legs; ring means surrounding and holding one end portion of said legs and said struts together and permitting downwardly diverging movement of said legs; and, a fabric seat secured to the upper end portion of said struts.
Claim 3
Dependent Claim
101 words
Structure as specified in claim 1 in which the upper end portion of each said leg is bifurcated to form an upwardly open slot for nesting an intermediate portion of each respective said strut, and a lug secured to the depending end portion of each said strut, said lugs each having convergent side surfaces contiguously contacting like surfaces of adjacent lugs when said struts are disposed in said second tubular member forming position, said lugs each having divergent dependIng end surfaces contacting like end surfaces of the next adjacent juxtaposed lugs when said struts are disposed in upwardly diverging seat-forming position.
Claim 4
Dependent Claim
49 words
Structure as specified in claim 2 in which each said strut and said leg is provided with laterally open recesses forming opposing shoulders, perpendicular to the longitudinal axis of the strut, for engaging the inner surfaces of the respective bifurcated end portion of said legs in strut supporting relation.
Claim 5
Dependent Claim
43 words
Structure as specified in claim 3 and further including: resilient means connected with said fabric seat and at least one said strut for collapsing said fabric seat toward a folded position when said struts are pivoted toward said second tubular member forming position.
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |