Patent US3691671A successfully refreshed from Google Patents.
US3691671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable doll house
Assignee: Individual
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Filing: 1971-01-11
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Granted: 1972-09-19
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Expires: 1991-01-11
Abstract
Abstract A multi-room expandable and contractible doll house includes a plurality of slideably telescoping room-defining sections movable between contracted nesting and extended end-to-end positions. Each section includes a roof formed of upwardly converging top panels, a floor panel, a rear panel and an inner end panel, corresponding longitudinal panels of adjacent sections being slideably engageable. At least one longitudinal slot is formed in each rear wall and a headed pin is fixed proximate the inner edge of each rear wall and engages the slot in an adjacent wall to limit the outward movement of the sections to slightly overlapping end-to-end positions. The outer edge of each section is provided with a depending flange which terminate at a common level.
Inventors
- 👤 Frederick H Kroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:55
CPC Classifications
A; A63; A63H; A63H3/00; A63H3/36; A63H3/52
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
210 words
A collapsible doll house comprising a plurality of slideably telescoping successively smaller sections relatiVely longitudinally movable between an extended end-to-end position and a contracted collapsed condition wherein the largest section comprises a bottom wall, a top wall, a rear wall and an end wall, and wherein each of said smaller sections nests in the next successive larger section, each of said smaller sections comprising a bottom wall above the level of and slideable along the bottom wall of the adjacent larger section, a top wall below the level of and slideable along the top wall of the adjacent larger section, a rear wall extending between said top and bottom walls and disposing forwardly of and slideable along the front face of the rear wall of the adjacent larger section, and an end wall extending between said top and bottom walls and slideably registering with the adjacent larger section, the fronts of a plurality of said sections being open to provide access thereto, including means interconnecting successive sections and means to maintain the bottom walls of all the smaller sections parallel to the bottom wall of the largest section both when the smaller sections are telescoped within the largest section and when the smaller sections are in the extended end-to-end position.
Claim 2
Dependent Claim
210 words
A collapsible doll house comprising a plurality of slideably telescoping successively smaller sections relatiVely longitudinally movable between an extended end-to-end position and a contracted collapsed condition wherein the largest section comprises a bottom wall, a top wall, a rear wall and an end wall, and wherein each of said smaller sections nests in the next successive larger section, each of said smaller sections comprising a bottom wall above the level of and slideable along the bottom wall of the adjacent larger section, a top wall below the level of and slideable along the top wall of the adjacent larger section, a rear wall extending between said top and bottom walls and disposing forwardly of and slideable along the front face of the rear wall of the adjacent larger section, and an end wall extending between said top and bottom walls and slideably registering with the adjacent larger section, the fronts of a plurality of said sections being open to provide access thereto, including means interconnecting successive sections and means to maintain the bottom walls of all the smaller sections parallel to the bottom wall of the largest section both when the smaller sections are telescoped within the largest section and when the smaller sections are in the extended end-to-end position.
Claim 3
Dependent Claim
65 words
The collapsible doll house of claim 1 wherein each of said smaller sections is provided with means for maintaining said house in level condition, said latter means including a depending foot piece at the bottom of the outer end of each smaller section, said foot pieces increasing in height with the decreasing size of said sections and terminating at their bottoms at a common level.
Claim 4
Dependent Claim
16 words
The collapsible doll house of claim 2 wherein said foot pieces comprise transversely extending depending flanges.
Claim 5
Dependent Claim
70 words
The collapsible doll house of claim 1 including flanges depending from the front edges of said top walls of all of said sections greater than the smallest section, the flanges of adjacent sections being in mutual slideable engagement and terminating at their free ends at a common level both when the smaller sections are telescoped within the largest section and when the smaller sections are in the extended end-to-end 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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |