US3233358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrally apertured circular construction block
Assignee: BRICO TOYS Ltd
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Filing: 1964-02-04
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Granted: 1966-02-08
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Expires: 1984-02-04
Abstract
No abstract record available.
Inventors
- 👤 Dehm Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:28
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
A BUILDING BLOCK WHICH COMPRISES A CIRCULAR TOP WALL AND A CYLINDRICAL SIDE WALL EXTENDING DOWNWARDLY AT THE PERIPHERY OF THE TOP WALL, THE TOP WALL BEING FORMED WITH A CENTRALLY DISPOSED HOLE ADAPTED TO RECEIVE AN AXLE AND WITH A PLURALITY OF EXTERIOR CYLINDRICAL PROJECTIONS DISPOSED EQUIDISTANTLY ON THE OUTER SURFACE OF THE TOP WALL IN LONGITUDINAL AND LATERAL ROW, THE FOUR CENTERMOST OF SAID EXTERIOR PROJECTIONS BEING DISPOSED ABOUT SAID CENTER HOLE EQUIDISTANTLY THEREFROM, THE SIDE WALL BEING FORMED WITH A PLURALITY OF VERTICAL SEMICYLINDRICAL GROOVES EACH OF WHICH IS POSITIONED TO ENGAGE ONE OF THE EXTERIOR CYLINDRICAL PROJECTIONS ON THE OUTER SURFACE OF THE TOP WALL OF ANOTHER BUILDING BLOCK, THE INTERIOR SURFACE OF THE TOP WALL BEING PROVIDED WITH AT LEAST ONE PAIR OF DOWNWARDLY EXTENDING LUGS, ONE LUG OS SAID PAIR BEING DISPAOED ON ONE SIDE AND THE OTHER LUG OF SAID PIR BEING DISPOSED ON THE OPPOSITE SIDE OF THE CENTER HOLE, EACH LUG BEING POSITIONED WITH RESPECT TO THE CENTER HOLE TO ENGAGE TWO OF THE EXTERIOR PROJECTIONS ON THE OUTER SURFACE OF THE TOP WALL OF ANOTHER BUILDING BLOCK, THE FACING SURFACES OF THE LUGS OF SAID PAIR BEING SUBSTANTIALLY PLANAR AND PARALLEL TO EACH OTHER.
Claim 2
Dependent Claim
204 words
A BUILDING BLOCK WHICH COMPRISES A CIRCULAR TOP WALL AND A CYLINDRICAL SIDE WALL EXTENDING DOWNWARDLY AT THE PERIPHERY OF THE TOP WALL, THE TOP WALL BEING FORMED WITH A CENTRALLY DISPOSED HOLE ADAPTED TO RECEIVE AN AXLE AND WITH A PLURALITY OF EXTERIOR CYLINDRICAL PROJECTIONS DISPOSED EQUIDISTANTLY ON THE OUTER SURFACE OF THE TOP WALL IN LONGITUDINAL AND LATERAL ROW, THE FOUR CENTERMOST OF SAID EXTERIOR PROJECTIONS BEING DISPOSED ABOUT SAID CENTER HOLE EQUIDISTANTLY THEREFROM, THE SIDE WALL BEING FORMED WITH A PLURALITY OF VERTICAL SEMICYLINDRICAL GROOVES EACH OF WHICH IS POSITIONED TO ENGAGE ONE OF THE EXTERIOR CYLINDRICAL PROJECTIONS ON THE OUTER SURFACE OF THE TOP WALL OF ANOTHER BUILDING BLOCK, THE INTERIOR SURFACE OF THE TOP WALL BEING PROVIDED WITH AT LEAST ONE PAIR OF DOWNWARDLY EXTENDING LUGS, ONE LUG OS SAID PAIR BEING DISPAOED ON ONE SIDE AND THE OTHER LUG OF SAID PIR BEING DISPOSED ON THE OPPOSITE SIDE OF THE CENTER HOLE, EACH LUG BEING POSITIONED WITH RESPECT TO THE CENTER HOLE TO ENGAGE TWO OF THE EXTERIOR PROJECTIONS ON THE OUTER SURFACE OF THE TOP WALL OF ANOTHER BUILDING BLOCK, THE FACING SURFACES OF THE LUGS OF SAID PAIR BEING SUBSTANTIALLY PLANAR AND PARALLEL TO EACH OTHER.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |