US3234682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-erecting building block
Assignee: Winthrop Atkins Co Inc
•
Filing: 1962-11-02
•
Granted: 1966-02-15
•
Expires: 1982-11-02
Abstract
No abstract record available.
Inventors
- 👤 Frankl Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:25
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A HOLLOW TOY BUILDING BLOCK OF POLYGONAL TRANSVERSE SECTION HAVING SIDE WALLS SYMMETRICALY DISPOSED WITH A RESPECT TO ITS LONGITUDINAL AXIS, SAID SIDE WALL BEING HINGEDLY CONNECTED PARALLEL TO SAID LONGITUDINAL AXIS, AN ELASTIC ELEMENT SECURED AT ITS ENDS UNDER TENSION TO TWO OF THE SIDE WALL ACROSS AT LEAST ONE OF THE HINGES CONNECTING THE SIDE WALLS, AND TENSION-RESISTING MEMBERS AT THE ENDS OF THE BLOCK, SAID TENSION-RESISTING MEMBERS COMPRISING END WALL PARTS CONSTITUTED BY INTEGRAL EXTENSIONS OF THE ENDS OF THE SIDE WALLS AT ONE END OF THE BLOCK, FOLDED INWARDLY THEREFROM ACROSS SAID END OF THE BLOCK TOWARD EACH OTHER, SAID END WALL PARTS HAVING EDGES WHICH MEET MIDWAY BETWEEN THE SIDE WALLS FROM WHICH THE EXTEND PARALLEL TO THE ELASTIC ELEMENT, MEANS CONNECTING THE MEETING EDGES OF SAID END WALL PARTS, SAID MEANS COMPRISING A TAB HINGEDLY
Claim 2
Dependent Claim
141 words
A HOLLOW TOY BUILDING BLOCK OF POLYGONAL TRANSVERSE SECTION HAVING SIDE WALLS SYMMETRICALY DISPOSED WITH A RESPECT TO ITS LONGITUDINAL AXIS, SAID SIDE WALL BEING HINGEDLY CONNECTED PARALLEL TO SAID LONGITUDINAL AXIS, AN ELASTIC ELEMENT SECURED AT ITS ENDS UNDER TENSION TO TWO OF THE SIDE WALL ACROSS AT LEAST ONE OF THE HINGES CONNECTING THE SIDE WALLS, AND TENSION-RESISTING MEMBERS AT THE ENDS OF THE BLOCK, SAID TENSION-RESISTING MEMBERS COMPRISING END WALL PARTS CONSTITUTED BY INTEGRAL EXTENSIONS OF THE ENDS OF THE SIDE WALLS AT ONE END OF THE BLOCK, FOLDED INWARDLY THEREFROM ACROSS SAID END OF THE BLOCK TOWARD EACH OTHER, SAID END WALL PARTS HAVING EDGES WHICH MEET MIDWAY BETWEEN THE SIDE WALLS FROM WHICH THE EXTEND PARALLEL TO THE ELASTIC ELEMENT, MEANS CONNECTING THE MEETING EDGES OF SAID END WALL PARTS, SAID MEANS COMPRISING A TAB HINGEDLY
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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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |