Patent US5467748A successfully refreshed from Google Patents.
Patent US3554494A successfully refreshed from Google Patents.
US3554494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building components
Assignee: Individual
•
Filing: 1968-09-19
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Granted: 1971-01-12
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Expires: 1988-09-19
Abstract
Abstract Building components particularly suitable for constructing fences or the like are formed as hollow plastic extrusions of substantially rectangular section having their hollow interiors divided into a plurality of channels by partitions. Rail sections have the partitions parallel only to their shorter sides while post sections have partitions parallel to each side. Core members of wood or steel which are a close sliding fit in one or more channels may also be provided.
Inventors
- 👤 Frederick Bee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:00
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/14; E04H17/1413; E04H17/1447; E04H17/146
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
130 words
A fence structure comprising two or more extruded plastics material support posts each arranged vertically and each comprising a hollow annular wall structure of rectangular cross section, said wall structure including an inner wall and an outer wall and a plurality of internal webs extending between said inner wall and said outer wall to divide the annular space therebetween into a plurality of rectangular cross section cells, one or more extended plastics material rails extending between said support posts, each comprising a hollow annular shell of rectangular cross section and a plurality of internal walls extending between the longer sides of said shell structure to divide the space within said shell structure into a plurality of rectangular cross section cells, and means for attaching said rails to said support posts.
Claim 2
Dependent Claim
130 words
A fence structure comprising two or more extruded plastics material support posts each arranged vertically and each comprising a hollow annular wall structure of rectangular cross section, said wall structure including an inner wall and an outer wall and a plurality of internal webs extending between said inner wall and said outer wall to divide the annular space therebetween into a plurality of rectangular cross section cells, one or more extended plastics material rails extending between said support posts, each comprising a hollow annular shell of rectangular cross section and a plurality of internal walls extending between the longer sides of said shell structure to divide the space within said shell structure into a plurality of rectangular cross section cells, and means for attaching said rails to said support posts.
Claim 3
Dependent Claim
46 words
A fence structure according to claim 1 wherein said plurality of internal webs of each said post includes webs arranged to continue the sides of said inner wall across said annular space to said outer wall at each end of each side of the inner wall.
Claim 4
Dependent Claim
33 words
A fence structure according to claim 1, wherein said plurality of internal webs of each said post further includes to two further webs symmetrically disposed along the longer sides of said wall structure.
Claim 5
Dependent Claim
36 words
A fence structure according to claim l, including a core member arranged to be a sliding fit in each of one or more of a said cells of one or more of a said support posts.
Claim 6
Dependent Claim
72 words
A fence structure according to claim 4, wherein one or more of a said core members in each said support posts is provided with one or more screw-threaded holes and said outer wall of said wall structure is provided with an aperture in register with each said screw-threaded hole, said means for attaching said rails to said support posts including a screw-threaded bolt passing through the rail into one of said holes.
Claim 7
Dependent Claim
34 words
A fence structure according to claim l, including a core member arranged to be a sliding fit in each of one or more of said cells on of one or more of said rails.
Claim 8
Dependent Claim
86 words
A fence structure according to claim l, wherein said means for attaching said rails to said support posts comprise an aperture through the rail, an aperture in at least said outer wall of said post wall structure, an anchor member shaped to be insertable through said aperture in said outer wall and then to be turned to engage against the inside of said outer wall, and a screw-threaded bolt passing through said rail aperture and said wall aperture into said anchor member to hold said rail.
Claim 9
Dependent Claim
49 words
A fence structure according to claim 1, including an end cap mounted on top of each said support post, said end cap comprising a moulded plastics material body having a plurality of tongues extending therefrom to enter respectively and engage with a plurality of said spaces in said posts.
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |