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US3720401A Expired / Lapsed US ⏱️ 0.0 years remaining

Plastic fence post

Assignee: Individual
•
Filing: 1970-12-29
•
Granted: 1973-03-13
•
Expires: 1990-12-29
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Abstract

Abstract A hollow plastic fence post has a detachable steel driving cap and a detachable decorative cap used after driving. Corrugations around the lower end prevent displacement of the post after driving and apertures through the walls permit attachment of wire or wood straps to which fence rails may be nailed.

Inventors

  • 👤 A Loch
  • 👤 G Loch

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 17:39
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/006

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 202 words
The combination of a fence post comprising a vertically elongated hollow body having an open upper end and a pointed lower end portion adapted for insertion in the ground, said body being formed from plastic material and being provided with a vertical row of circular apertures communicating with the hollow interior of the body, a plastic closure cap removably positioned on and closing the open upper end of said body, a fence wire, and a fastener for attaching said fence wire to said post body, said fastener comprising a head portion provided with a transverse bore having said fence wire extending therethrough, a bifurcated cylindrical stem portion integral with said head portion defining a pair of legs which are normally spaced apart but are resiliently compressible toward each other, and outturned enlargements provided at the free ends of said legs, compression of said legs toward each other permitting said enlargements to pass through one of said apertures in the post body and said bifurcated cylindrical stem portion to be retained in the circular aperture by engagement of the enlargements with the interior surface of the fence body when said legs are expanded by their inherent resiliency to their normally spaced apart position.
Claim 2
Dependent Claim 202 words
The combination of a fence post comprising a vertically elongated hollow body having an open upper end and a pointed lower end portion adapted for insertion in the ground, said body being formed from plastic material and being provided with a vertical row of circular apertures communicating with the hollow interior of the body, a plastic closure cap removably positioned on and closing the open upper end of said body, a fence wire, and a fastener for attaching said fence wire to said post body, said fastener comprising a head portion provided with a transverse bore having said fence wire extending therethrough, a bifurcated cylindrical stem portion integral with said head portion defining a pair of legs which are normally spaced apart but are resiliently compressible toward each other, and outturned enlargements provided at the free ends of said legs, compression of said legs toward each other permitting said enlargements to pass through one of said apertures in the post body and said bifurcated cylindrical stem portion to be retained in the circular aperture by engagement of the enlargements with the interior surface of the fence body when said legs are expanded by their inherent resiliency to their normally spaced apart position.

References Cited (Backward Citations)

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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) 1976-03-12 1976-09-11 1977-03-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-03-12 1980-09-11 1981-03-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-03-12 1984-09-11 1985-03-13 $7700.00 Window Closed / Lapsed

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