Patent US4258522A successfully refreshed from Google Patents.
US4258522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction blocks
Assignee: Individual
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Filing: 1979-05-18
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Granted: 1981-03-31
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Expires: 1999-05-18
Abstract
Abstract A system of construction blocks preferably constructed from plastic having interlocking sides, tops and bottoms which can be assembled with or without adhesive rather than mortar and which are strong, inexpensive, hollow and lightweight.
Inventors
- 👤 Jose A. Amaral
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:48
CPC Classifications
E; E04; E04C; E04C1/00; E04C1/40; E04B; E04B2/00; E04B2/02; E04B2002/0202; E04B2002/0204; E04B2002/0206; E04B2002/0226
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
280 words
A construction block having: a top; a bottom; first and second side walls having outer and inner wall surfaces; and first and second ends, at least said first end having an end surface which extends from said first side wall outer surface to said second side wall outer surface and which includes in order from said first side wall outer surface to said second side wall outer surface, a first end surface portion, a second end surface portion perpendicular to said first end surface portion, a third end surface portion perpendicular to said second end surface portion and closer to said second end than said first end surface portion, a fourth end surface portion perpendicular to said first and third end surface portions, a fifth end surface portion perpendicular to said second and fourth end surface portions and further from said second end than said first end surface portion, a sixth end surface portion perpendicular to said first, third and fifth end surface portions, a seventh end surface portion perpendicular to said second, fourth and sixth end surface portions and closer to said second end than said first end surface portion, an eighth end surface portion perpendicular to said first, third, fifth and seventh end surface portions, a ninth end surface portion perpendicular to said second, fourth, sixth and eighth end surface portions and further from said second end than said first end surface portion, a tenth end surface portion perpendicular to said first, third, fifth, seventh and ninth end surface portions, and an eleventh end surface portion perpendicular to said second, fourth, sixth, eighth and tenth end surface portions and in planar alignment with said first end surface portion.
Claim 2
Dependent Claim
280 words
A construction block having: a top; a bottom; first and second side walls having outer and inner wall surfaces; and first and second ends, at least said first end having an end surface which extends from said first side wall outer surface to said second side wall outer surface and which includes in order from said first side wall outer surface to said second side wall outer surface, a first end surface portion, a second end surface portion perpendicular to said first end surface portion, a third end surface portion perpendicular to said second end surface portion and closer to said second end than said first end surface portion, a fourth end surface portion perpendicular to said first and third end surface portions, a fifth end surface portion perpendicular to said second and fourth end surface portions and further from said second end than said first end surface portion, a sixth end surface portion perpendicular to said first, third and fifth end surface portions, a seventh end surface portion perpendicular to said second, fourth and sixth end surface portions and closer to said second end than said first end surface portion, an eighth end surface portion perpendicular to said first, third, fifth and seventh end surface portions, a ninth end surface portion perpendicular to said second, fourth, sixth and eighth end surface portions and further from said second end than said first end surface portion, a tenth end surface portion perpendicular to said first, third, fifth, seventh and ninth end surface portions, and an eleventh end surface portion perpendicular to said second, fourth, sixth, eighth and tenth end surface portions and in planar alignment with said first end surface portion.
Claim 3
Dependent Claim
22 words
The block as defined in claim 1 wherein said fourth, sixth, and eighth end surface portions have the same widths and lengths.
Claim 4
Dependent Claim
34 words
The block as defined in claim 2 wherein said second and tenth end surface portions have generally one half the width of said fourth, sixth, and eighth end surface portions and the same lengths.
Claim 5
Dependent Claim
38 words
The block as defined in claim 3 wherein said second end has an end surface which is the mirror image of said first end surface so that adjacent blocks can mate first end surface to second end surface.
Claim 6
Dependent Claim
33 words
The block as defined in claim 4 wherein said third and seventh end surface portions are positioned in planar relationship and said fifth and ninth end surface portions are positioned in planar relationship.
Claim 7
Dependent Claim
38 words
The block as defined in claim 4 wherein said top includes; at least one upstanding platform, said platform having a predetermined height and said bottom defining at least one opening for receiving at least one of said platforms.
Claim 8
Dependent Claim
118 words
The block as defined in claim 6 further including: first and second interior walls which extend from said first side wall inner surface to said second side wall inner surface, said first interior walls extending to said bottom and said second walls extending to a position which is above said bottom a distance generally equal to said predetermined height of said platform, said platform having a top surface and said second interior walls having a bottom surface adapted for adhesive bonding to said top surface of said platform, at least two of said first interior walls being spaced so that a platform of an adjacent block can nest therebetween and having at least one second interior wall therebetween.
Claim 9
Dependent Claim
14 words
The block as defined in claim 7 wherein said platform is rectangular in shape.
Claim 10
Dependent Claim
28 words
The block as defined in claim 7 wherein said first and second end walls are hollow and portions only of said first and second side walls are hollow.
Claim 11
Dependent Claim
14 words
The block as defined in claim 7 wherein said block is constructed from plastic.
Claim 12
Dependent Claim
20 words
The block as defined in claim 10 wherein said first and second outer side wall surfaces are textured and colored.
Claim 13
Dependent Claim
18 words
The block as defined in claim 10 wherein said first and second outer side wall surfaces are transparent.
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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |