Patent US4361983A successfully refreshed from Google Patents.
US4361983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water and fertilizer dispenser for plants
Assignee: Individual
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Filing: 1980-11-12
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Granted: 1982-12-07
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Expires: 2000-11-12
Abstract
Abstract A subterranean, visually unobserveable, landscaping device for watering and fertilizing plant, tree, and shrub roots. The device is especially useful with weed inhibiting ground covers placed around the plant growth. A special compartment inhibits weed growth by laterally surrounding the hole in a ground cover and stores fertilizer that is dispensed incrementally over a period of time through interaction with water flow through the device.
Inventors
- 👤 Gary M. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:33
CPC Classifications
A; A01; A01G; A01G29/00; A01G25/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
A device that is useful in landscaping to provide a visually hidden subterranean dispenser for water and fertilizer comprising: an elongated, hollow, chamber, said chamber having a plurality of apertures disposed through its surface, said chamber having a pointed, end tip disposed at one end, and an opening at the opposite end; a frusto-conically shaped compartment centrally connected at one end to said chamber opening; and a top mountable over said frusto-conical compartment, said top having a plurality of holes disposed therethrough, whereby said device may be used for watering and fertilizing subterranean areas, and a plurality of raised ribs, disposed within said frusto-conical compartment, for supporting a fertilizer, spaced above the interior surface of the compartment.
Claim 2
Independent Claim
117 words
A device that is useful in landscaping to provide a visually hidden subterranean dispenser for water and fertilizer comprising: an elongated, hollow, chamber, said chamber having a plurality of apertures disposed through its surface, said chamber having a pointed, end tip disposed at one end, and an opening at the opposite end; a frusto-conically shaped compartment centrally connected at one end to said chamber opening; and a top mountable over said frusto-conical compartment, said top having a plurality of holes disposed therethrough, whereby said device may be used for watering and fertilizing subterranean areas, and a plurality of raised ribs, disposed within said frusto-conical compartment, for supporting a fertilizer, spaced above the interior surface of the compartment.
Claim 3
Independent Claim
142 words
A device that is useful in landscaping to provide a virtually hidden subterranean dispenser for water and fertilizer comprising: an elongated, hollow, chamber, said chamber having a plurality of apertures disposed through its surface, said chamber having a pointed, end tip disposed at one end, and an opening at the opposite end; a frusto-conically shaped compartment centrally connected at one end to said chamber opening; and a top mountable over said frusto-conical compartment, said top having a plurality of holes disposed therethrough, whereby said device may be used for watering and fertilizing subterranean areas; a ground cover having a hole disposed over the ground to inhibit weed growth, said landscaping device disposed through said hole in said ground cover; and a plurality of raised ribs, disposed within said frusto-conical compartment, for supporting a fertilizer, spaced above the interior surface of the compartment.
Claim 4
Independent Claim
142 words
A device that is useful in landscaping to provide a virtually hidden subterranean dispenser for water and fertilizer comprising: an elongated, hollow, chamber, said chamber having a plurality of apertures disposed through its surface, said chamber having a pointed, end tip disposed at one end, and an opening at the opposite end; a frusto-conically shaped compartment centrally connected at one end to said chamber opening; and a top mountable over said frusto-conical compartment, said top having a plurality of holes disposed therethrough, whereby said device may be used for watering and fertilizing subterranean areas; a ground cover having a hole disposed over the ground to inhibit weed growth, said landscaping device disposed through said hole in said ground cover; and a plurality of raised ribs, disposed within said frusto-conical compartment, for supporting a fertilizer, spaced above the interior surface of the compartment.
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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) | 1985-12-06 | 1986-06-07 | 1986-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-06 | 1990-06-07 | 1990-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-06 | 1994-06-07 | 1994-12-07 | $7700.00 | Window Closed / Lapsed |