Patent US3818656A successfully refreshed from Google Patents.
US3818656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction brick
Assignee: Lee Raymond Organization Inc
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Filing: 1973-03-13
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Granted: 1974-06-25
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Expires: 1993-03-13
Abstract
Abstract An improved construction brick, which is self-aligning and may be fastened in place without mortar. The top of each brick is formed with a series of pointed projections which mate with matching indentations in the bottom surface of the supported brick, when the bricks are stacked and arranged in the conventional overlapping pattern of construction bricks. Similar interlocking projections and recesses are located on the inner side surfaces of the bricks. Through interior vents are located in the interior of the bricks, with vent passages running from the top to the bottom brick surfaces, and with passageways for utilities.
Inventors
- 👤 P Vigliotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:33
CPC Classifications
E; E04; E04C; E04C1/00; E04C1/39; E04C1/397; E04B; E04B2/00; E04B2/02; E04B2/14; E04B2/16; E04B2/18; E04B2002/0202; E04B2002/0204; E04B2002/0206
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
166 words
An improved construction brick which is self-aligning and may be fastened in interlocking fashion to adjoining such bricks without the use of mortar or other adhesives, said brick containing projections of the side faces along one vertical end face and one horizontal face for alignment purposes, said brick being formed with matching recesses on the opposite vertical end face and horizontal face for the purpose of mating with the projections on the side faces of adjacent similar bricks, with a rib structure which projects from one vertical brick face and one horizontal brick face that matches the recess on the opposite vertical brick face and opposite brick horizontal faces so that the projections on one brick face may mate with the recesses on the face of a similar adjacent brick, with said rib structure formed with wings of essentially wider rib sections, said wings having curved, undercut sides which mate with the curved undercut sides of the recesses in the opposite faces of similar shaped bricks.
Claim 2
Dependent Claim
166 words
An improved construction brick which is self-aligning and may be fastened in interlocking fashion to adjoining such bricks without the use of mortar or other adhesives, said brick containing projections of the side faces along one vertical end face and one horizontal face for alignment purposes, said brick being formed with matching recesses on the opposite vertical end face and horizontal face for the purpose of mating with the projections on the side faces of adjacent similar bricks, with a rib structure which projects from one vertical brick face and one horizontal brick face that matches the recess on the opposite vertical brick face and opposite brick horizontal faces so that the projections on one brick face may mate with the recesses on the face of a similar adjacent brick, with said rib structure formed with wings of essentially wider rib sections, said wings having curved, undercut sides which mate with the curved undercut sides of the recesses in the opposite faces of similar shaped bricks.
Claim 3
Dependent Claim
44 words
The combination as recited in claim 1 in which the interior of the brick is hollow, with vent holes in the face of said brick providing for the circulation of air from the interior of said brick to the interior of an adjacent brick.
Claim 4
Dependent Claim
56 words
The combination as recited in claim 2 in which said brick contains a through passageway for the insertion of a utility pipe or wire, with a side of said passageway being formed with a weakened section which is readily knocked out when it is desired to connect to said passageway, through the side of the brick.
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) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |