US4523405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support stake for plants
Assignee: Individual
•
Filing: 1983-09-21
•
Granted: 1985-06-18
•
Expires: 2003-09-21
Abstract
Abstract A stake for supporting plants is provided having a high stiffness cross-section modulus including lobed surfaces for attachment of soft stemmed plants thereto and serrated tying surfaces for locating stem ties in non-sliding relation, the stake being of plastic and suited for manufacture by extrusion. In one embodiment a driving cap is provided to facilitate insertion of the stake into the ground. The stake ends are symetrically pointed to facilitate use.
Inventors
- 👤 Ciro Madonia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:18
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/12; A01G9/122; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24777
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
169 words
An extruded plastic stake having a solid homogeneous cross section with a pointed end portion at one end thereof and a hollow cylindrical driving cap at the other end, the balance of the length of the stake being of substantially uniform cross section having at least three extending wing portions providing longitudinally extending solid ribs encircled by said cap, said ribs having outwardly concave surfaces extending therebetween comprising longitudinally extending recesses to receive in use an object to be secured to the stake in located relation with a said recess, said solid cross section ensuring said point section being solid, to resist damage to the stake and facilitate penetration on being driven into the ground, said wing portions including thickened longitudinally extending edge portions having substantially arcuate edge surfaces, with a series of shallow serrations extending across said edge surfaces of at least one said wing portion to provide in use longitudinal locating engagement of said grooves with a tie member when wrapped in secured relation about the stake.
Claim 2
Dependent Claim
169 words
An extruded plastic stake having a solid homogeneous cross section with a pointed end portion at one end thereof and a hollow cylindrical driving cap at the other end, the balance of the length of the stake being of substantially uniform cross section having at least three extending wing portions providing longitudinally extending solid ribs encircled by said cap, said ribs having outwardly concave surfaces extending therebetween comprising longitudinally extending recesses to receive in use an object to be secured to the stake in located relation with a said recess, said solid cross section ensuring said point section being solid, to resist damage to the stake and facilitate penetration on being driven into the ground, said wing portions including thickened longitudinally extending edge portions having substantially arcuate edge surfaces, with a series of shallow serrations extending across said edge surfaces of at least one said wing portion to provide in use longitudinal locating engagement of said grooves with a tie member when wrapped in secured relation about the stake.
Claim 3
Dependent Claim
13 words
The stake as claimed in claim 1, said end portion being symetrically pointed.
Claim 4
Dependent Claim
24 words
The stake as set forth in claim 1 wherein all of said wing portions are provided with said shallow serrations across said edge surfaces.
References Cited (Backward Citations)
US3293809A
Cited
DE1962305A1
Cited
FR2082656A5
Cited
US3875699A
Cited
US4256685A
Cited
GB1590231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-17 | 1988-12-17 | 1989-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-17 | 1992-12-17 | 1993-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-17 | 1996-12-17 | 1997-06-18 | $7700.00 | Window Closed / Lapsed |