US4965979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete block wall
Assignee: Individual
•
Filing: 1989-05-15
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Granted: 1990-10-30
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Expires: 2009-05-15
Abstract
Abstract A concrete block wall that has blocks with arcuate faces that are laid in alternating courses to form a woven effect. The blocks are laid without mortar and held together by a combination of recesses and protrusions in the upper and lower faces thereof along with a locking piece that engages the radiused end walls of adjacent blocks.
Inventors
- 👤 Ronald J. Larrivee
- 👤 John D. Downs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:13
CPC Classifications
E; E04; E04C; E04C1/00; E04C1/39; E04C1/395; E04B; E04B2/00; E04B2/02; E04B2002/0202; E04B2002/0204; E04B2002/0215; E04B2002/0223
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
103 words
A concrete block wall creating a woven effect comprising a plurality of blocks having an arcuate face each with planar upper and lower surfaces, radiused ends and a central opening and laid in superimposed courses; the blocks in each course being laid end to end; the blocks in the adjacent course having the radiused ends overlying a portion of the adjacent course and a plurality of interlocking members, each member having a frontal portion and a rear portion, said rear portion engaging the said openings in adjacent courses and the frontal portion engaging the radiused ends of juxtaposed blocks in the same course.
Claim 2
Dependent Claim
103 words
A concrete block wall creating a woven effect comprising a plurality of blocks having an arcuate face each with planar upper and lower surfaces, radiused ends and a central opening and laid in superimposed courses; the blocks in each course being laid end to end; the blocks in the adjacent course having the radiused ends overlying a portion of the adjacent course and a plurality of interlocking members, each member having a frontal portion and a rear portion, said rear portion engaging the said openings in adjacent courses and the frontal portion engaging the radiused ends of juxtaposed blocks in the same course.
Claim 3
Dependent Claim
23 words
A concrete block wall as in claim 1 wherein each member has a rectangular block frontal portion and a tapered elongated rear portion.
References Cited (Backward Citations)
BE542360A
Cited
BE528025A
Cited
US1630698A
Cited
US2911818A
Cited
US3605322A
Cited
DE2753086A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-29 | 1994-04-30 | 1994-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-29 | 1998-04-30 | 1998-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-29 | 2002-04-30 | 2002-10-30 | $7700.00 | Window Closed / Lapsed |