US4553741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic fence assembly
Assignee: Individual
•
Filing: 1984-10-04
•
Granted: 1985-11-19
•
Expires: 2004-10-04
Abstract
Abstract Hollow plastic posts and rails interlock to form fences. The posts are hollow cylindrical pipes having two axially spaced elongated ovalur slots through the shell thereof for receiving the rails. The rails are hollow plastic members having ovalur ends for mating into the slots on the post. The members are interlocked by forming flexible deformable rail ends with a width slightly greater than the length of the receptacle slots and notching the rail ends to register in place engaging the shell casing of the posts at the ends of the slots.
Inventors
- 👤 Charles K. Creasy
- 👤 Eustis Hendley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:41
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/14; E04H17/1413; E04H17/1447; E04H17/1465
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
203 words
A fence section having two plastic fence posts comprising lengths of hollow cylindrical tubing anchored to stand vertically above the ground at a predetermined spacing and defining therein an axially spaced set of two or more axially elongated oval shaped apertures for receiving thereinto mating rails of elongated oval shape extending between two spaced posts and extending into the hollow cylindrical tubing of said posts, two hollow plastic rails held between said posts with oval shaped ends thereon mating with said oval shaped apertures of said posts, the rails being of a length substantially that of the predetermined spacing such that the ends thereof at opposite ends of the rail extend through the apertures into the hollow cylindrical tubing of the respective spaced posts, wherein the rails are flattened oval shaped members each having flexible deformable plastic ends with a slit on each side of the rail width through the oval shaped members near opposite ends and removed a short distance from the end of the rail, the rail width being slightly greater than the length of the apertures in the posts whereby the rail may be deformed to mate the slits to fit into locking engagement with the apertures in the posts.
Claim 2
Dependent Claim
203 words
A fence section having two plastic fence posts comprising lengths of hollow cylindrical tubing anchored to stand vertically above the ground at a predetermined spacing and defining therein an axially spaced set of two or more axially elongated oval shaped apertures for receiving thereinto mating rails of elongated oval shape extending between two spaced posts and extending into the hollow cylindrical tubing of said posts, two hollow plastic rails held between said posts with oval shaped ends thereon mating with said oval shaped apertures of said posts, the rails being of a length substantially that of the predetermined spacing such that the ends thereof at opposite ends of the rail extend through the apertures into the hollow cylindrical tubing of the respective spaced posts, wherein the rails are flattened oval shaped members each having flexible deformable plastic ends with a slit on each side of the rail width through the oval shaped members near opposite ends and removed a short distance from the end of the rail, the rail width being slightly greater than the length of the apertures in the posts whereby the rail may be deformed to mate the slits to fit into locking engagement with the apertures in the posts.
Claim 3
Dependent Claim
127 words
Hollow plastic fence rails comprising lengths of hollow tubing of flexible plastic that may be deformed at each end presenting elongated oval shaped ends of predetermined width adapted to mate into elongated oval shaped slots in hollow plastic fence posts, and interlocking structure on the rail ends for mating into the oval slots comprising slits extending into the opposite sides of the oval shaped rail near each end for inserting into and lockingly engaging mating elongated oval shaped mating slots in the fence posts of a dimension fitting snugly into the slits and about the circumference of the remainder of the oval shaped rail member, whereby the ends of the rails may be flexibly deformed to insert and interlock into the mating slots in the fence posts.
Claim 4
Dependent Claim
127 words
Hollow plastic fence rails comprising lengths of hollow tubing of flexible plastic that may be deformed at each end presenting elongated oval shaped ends of predetermined width adapted to mate into elongated oval shaped slots in hollow plastic fence posts, and interlocking structure on the rail ends for mating into the oval slots comprising slits extending into the opposite sides of the oval shaped rail near each end for inserting into and lockingly engaging mating elongated oval shaped mating slots in the fence posts of a dimension fitting snugly into the slits and about the circumference of the remainder of the oval shaped rail member, whereby the ends of the rails may be flexibly deformed to insert and interlock into the mating slots in the fence posts.
References Cited (Backward Citations)
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Cited
GB734057A
Cited
US2955799A
Cited
US3107900A
Cited
US3700213A
Cited
US4140298A
Cited
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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) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |