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US3076286A
Expired / Lapsed
US
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Building blocks
Assignee: Individual
•
Filing: 1955-07-15
•
Granted: 1963-02-05
•
Expires: 1975-07-15
Abstract
No abstract record available.
Inventors
- 👤 Stephen J Czecholinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:06
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/04; E04B2/06; E04B2/08; A; A63; A63H; A63H33/00; A63H33/04; A63H33/06; A63H33/08; A63H33/082; E04B2/12; E04B2002/0202; E04B2002/0243; E04B2002/0252
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
IN A SYSTEM OF INTERLOCKING BUILDING BLOCKS ADAPTED TO BE STACKED UPON EACH OTHER IN ROWS FOR CONSTRUCTING THE WALLS OF A BUILDING, A BODY HAVING A LONGITUDINAL DOVETAIL MORTISE ALONG BOTH ITS TOP AND BOTTOM SURFACES WITH A PAIR OF RECESSES FORMED AT THE SAME END OF THE BLOCK AT THE TERMINATION OF EACH OF SAID LONGITUDINAL MORTISES, SAID BODY ALSO HAVING AN END DOVETAIL MORTISE AT ONE END, FORMED BETWEEN THE TWO RECESSES, A DOVETAIL TENON EXTENDING FROM THE END OF SAID BODY OPPOSITE THE END IN WHICH SAID END DOVETAIL MORTISE IS FORMED, SAID DOVETAIL TENON BEING LOCATED BETWEEN THE TWO LONGITUDINAL DOVETAIL MORTISE IN POSITION TO ENGAGE THE END DOVETAIL MORTISE OF THE BLOCK ADJACENT TO IT IN THE SAME ROW FOR PREVENTING THEIR HORIZONTAL SEPARATION, AND A DOUBLE DOVETAIL INSERT FORMED OF TWO LONGITUDINAL DOVETAILS OPPOSITELY DISPOSED AND JOINED AT THEIR NARROW EDGES WITH ONE DOVETAIL OF SAID INSERT ENGAGED WITH THE TOP LONGITUDINAL DOVETAIL MORTISE OF ONE BLOCK AND THE OTHER DOVETAIL OF SAID INSERT ENGAGED WITH THE BOTTOM LONGITU-
Claim 2
Dependent Claim
176 words
IN A SYSTEM OF INTERLOCKING BUILDING BLOCKS ADAPTED TO BE STACKED UPON EACH OTHER IN ROWS FOR CONSTRUCTING THE WALLS OF A BUILDING, A BODY HAVING A LONGITUDINAL DOVETAIL MORTISE ALONG BOTH ITS TOP AND BOTTOM SURFACES WITH A PAIR OF RECESSES FORMED AT THE SAME END OF THE BLOCK AT THE TERMINATION OF EACH OF SAID LONGITUDINAL MORTISES, SAID BODY ALSO HAVING AN END DOVETAIL MORTISE AT ONE END, FORMED BETWEEN THE TWO RECESSES, A DOVETAIL TENON EXTENDING FROM THE END OF SAID BODY OPPOSITE THE END IN WHICH SAID END DOVETAIL MORTISE IS FORMED, SAID DOVETAIL TENON BEING LOCATED BETWEEN THE TWO LONGITUDINAL DOVETAIL MORTISE IN POSITION TO ENGAGE THE END DOVETAIL MORTISE OF THE BLOCK ADJACENT TO IT IN THE SAME ROW FOR PREVENTING THEIR HORIZONTAL SEPARATION, AND A DOUBLE DOVETAIL INSERT FORMED OF TWO LONGITUDINAL DOVETAILS OPPOSITELY DISPOSED AND JOINED AT THEIR NARROW EDGES WITH ONE DOVETAIL OF SAID INSERT ENGAGED WITH THE TOP LONGITUDINAL DOVETAIL MORTISE OF ONE BLOCK AND THE OTHER DOVETAIL OF SAID INSERT ENGAGED WITH THE BOTTOM LONGITU-
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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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |