Patent US3872620A successfully refreshed from Google Patents.
US3872620A
Expired / Lapsed
US
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Panel construction toy
Assignee: Dart Industries Inc
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Filing: 1970-07-28
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Granted: 1975-03-25
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Expires: 1990-07-28
Abstract
Abstract A panel construction toy including hollow body building elements capable of interengagement to form various constructional configurations; for example, house-like or other modular arrangements. The panel toy comprises wall, door, window and roof panels as well as coupling members adapted to interengage portions thereof, thereby securely fastening the panels together. The panel construction is further of such a character that the transitional point between panels is made in a smooth continuous fashion.
Inventors
- 👤 Robert Daenen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:50
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/06; A63H33/10; A63H33/105; E; E04; E04B; E04B1/00; E04B1/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
101 words
A panel member adapted for abutment with members similar thereto and including a top wall member having a depending skirt portion extending at least partially therearound, ledge portions adapted to receive coupling members thereon positioned at spaced intervals around said skirt portion and extending approximately perpendicularly therefrom, and beveled sidewall members placed intermediate of said ledge portions and extending outwardly from said top wall member to a terminus proximate the outermost edge of said ledge portion, said beveled side wall members being thus adapted for juxtapositioning with like walls of similar panel members upon the abutment of such similar panel members.
Claim 2
Dependent Claim
101 words
A panel member adapted for abutment with members similar thereto and including a top wall member having a depending skirt portion extending at least partially therearound, ledge portions adapted to receive coupling members thereon positioned at spaced intervals around said skirt portion and extending approximately perpendicularly therefrom, and beveled sidewall members placed intermediate of said ledge portions and extending outwardly from said top wall member to a terminus proximate the outermost edge of said ledge portion, said beveled side wall members being thus adapted for juxtapositioning with like walls of similar panel members upon the abutment of such similar panel members.
Claim 3
Dependent Claim
26 words
A panel member according to claim 1 wherein said ledge portions are positioned along said skirt portion adjacent the respective corners of said top wall member.
Claim 4
Dependent Claim
26 words
A panel member according to claim 2 wherein said beveled side wall members extend from a major portion of the edge of said top wall member.
Claim 5
Dependent Claim
17 words
A panel member according to claim 1 wherein an opening is provided in said top wall member.
Claim 6
Dependent Claim
25 words
A panel member according to claim 4 wherein said opening extends to the said skirt portion on at least one side of said panel member.
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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |