US3220141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building blocks connectable in slideable or non-slideable relationship
Assignee: HALSAM PRODUCTS CO
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Filing: 1962-07-02
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Granted: 1965-11-30
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Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Iii Samuel G Goss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:42
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/06; A63H33/08; A63H33/084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A SET OF HOLLOW, PLASTIC INTERFITTING BLOCK-LIKE PIECES, EACH OF SAID PIECES BEING FORMED WITH A FIRST FACE HAVING A LONGITUDINAL RIDGE CENTRALLY DISPOSED THEREON, A SECOND FACE OPPOSITE SAID FIRST FACE ON SAID PIECE, A PAIR OF SPACED LONGITUDINAL RIDGES THEREON DEFINING A CHANNEL WITH SAID SECOND FACE, ALL OF SAID RIDGES BEING TRANSVERSELY NOTCHED TO A DEPTH LESS THAN THE HEIGHT OF SAID RIDGES, SO THAT WHEN TWO OF SAID PIECES ARE INTERFITTED SUCH THAT A FIRST FACE OF ONE PIECE AND A SECOND FACE OF ANOTHER PIECE ARE IN RIDGE-IN-CHANNEL REGISTER, RELATIVE HORIZONTAL MOVEMENT THEREBETWEEN IS PERMITTED AND WHEN SAID PIECES ARE INTERFITTED SO THAT THE RIDGE ON SAID FIRST FACE AND SAID CHANNEL ARE PLACED IN TRANSVERSE REGISTER, RELATIVE MOVEMENT BETWEEN SAID PIECES IN ANY HORIZONTAL DIRECTION IS PRECLUDED.
Claim 2
Dependent Claim
133 words
A SET OF HOLLOW, PLASTIC INTERFITTING BLOCK-LIKE PIECES, EACH OF SAID PIECES BEING FORMED WITH A FIRST FACE HAVING A LONGITUDINAL RIDGE CENTRALLY DISPOSED THEREON, A SECOND FACE OPPOSITE SAID FIRST FACE ON SAID PIECE, A PAIR OF SPACED LONGITUDINAL RIDGES THEREON DEFINING A CHANNEL WITH SAID SECOND FACE, ALL OF SAID RIDGES BEING TRANSVERSELY NOTCHED TO A DEPTH LESS THAN THE HEIGHT OF SAID RIDGES, SO THAT WHEN TWO OF SAID PIECES ARE INTERFITTED SUCH THAT A FIRST FACE OF ONE PIECE AND A SECOND FACE OF ANOTHER PIECE ARE IN RIDGE-IN-CHANNEL REGISTER, RELATIVE HORIZONTAL MOVEMENT THEREBETWEEN IS PERMITTED AND WHEN SAID PIECES ARE INTERFITTED SO THAT THE RIDGE ON SAID FIRST FACE AND SAID CHANNEL ARE PLACED IN TRANSVERSE REGISTER, RELATIVE MOVEMENT BETWEEN SAID PIECES IN ANY HORIZONTAL DIRECTION IS PRECLUDED.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |