Patent US3552056A successfully refreshed from Google Patents.
US3552056A
Expired / Lapsed
US
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Connecting element for connecting slotted structural elements in toy construction kits
Assignee: Individual
•
Filing: 1967-12-13
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Granted: 1971-01-05
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Expires: 1987-12-13
Abstract
Abstract CONNECTING MEANS ADAPTED TO ENGAGE FRICTIONALLY IN SLOTS FORMED IN THE ENDS OF ELONGATED RECTANGULAR STRUCTURAL ELEMENTS PROVIDED IN THE TOY CONSTRUCTION KITS, SO AS TO INTERCONNECT TWO, THREE, FOUR, OR UP TO TEN SUCH STRUCTURAL ELEMENTS, CIRCULAR DISC CONNECTORS MAY HAVE RADIAL SLOTS BRIDGED BY CUBIFORM PORTIONS FOR JOINING THE ELONGATED MEMBERS IN EITHER RADICAL OR PERPENDICULAR RELATION TO THE DISC. D R A W I N G
Inventors
- 👤 Kevin F Meates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:01
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/06; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/345; Y10T403/55; Y10T403/57
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |