Patent US4037362A successfully refreshed from Google Patents.
US4037362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for soilless growth of plants
Assignee: Individual
•
Filing: 1976-08-27
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Granted: 1977-07-26
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Expires: 1996-08-27
Abstract
Abstract There is disclosed a device for holding and growing plant material by hydroponic techniques, the device including a tray having sloping sidewalls, with the sidewalls having extensions for being supported on a rail, and a corrugated bottom with the corrugations shaped to provide drainage of liquid from the bottom of the tray and to hold a water-impervious, seed-holding membrane above the corrugations so that the membrane will have a crown that causes liquid to drain toward the edges of the tray.
Inventors
- 👤 Darrel S. Finck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:34
CPC Classifications
A; A01; A01G; A01G31/00; A01G31/02; A01G9/00; A01G9/04; A01G9/047; Y; Y02; Y02P; Y02P60/00; Y02P60/20; Y02P60/21
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
162 words
A device useful in soilless growth of plant materials comprising a tray element including: a. sidewalls wherein two opposing sidewalls have rail-engaging members, two opposing sidewalls have holding protrusions, and at least two sidewalls slope with respect to vertical to provide upwardly expanding area of said device, b. a bottom, including plural corrugations having upper crests and lower crests, wherein the plane including the tops of all upper crests is a surface draining toward said sidewalls and wherein said plane intersects said sidewalls immediately below said holding protrusions, and the bottoms of all corrugations are shaped to drain into a common liquid-collecting passageway, and c. a membrane made of water-impervious, non-porous, stiff but bendable material extending across and in contact with the tops of all of said corrugations, substantially in contact with all of said sidewalls and beneath said holding protrusions whereby said membrane forms an upper surface from which liquid will flow from the center of said surface toward the sidewalls.
Claim 2
Independent Claim
162 words
A device useful in soilless growth of plant materials comprising a tray element including: a. sidewalls wherein two opposing sidewalls have rail-engaging members, two opposing sidewalls have holding protrusions, and at least two sidewalls slope with respect to vertical to provide upwardly expanding area of said device, b. a bottom, including plural corrugations having upper crests and lower crests, wherein the plane including the tops of all upper crests is a surface draining toward said sidewalls and wherein said plane intersects said sidewalls immediately below said holding protrusions, and the bottoms of all corrugations are shaped to drain into a common liquid-collecting passageway, and c. a membrane made of water-impervious, non-porous, stiff but bendable material extending across and in contact with the tops of all of said corrugations, substantially in contact with all of said sidewalls and beneath said holding protrusions whereby said membrane forms an upper surface from which liquid will flow from the center of said surface toward the sidewalls.
Claim 3
Dependent Claim
22 words
The device of claim 1 wherein the long dimension of said corrugations is parallel with the long dimension of said rail-engaging member.
Claim 4
Dependent Claim
31 words
The device of claim 2 wherein said common gutter is shaped to drain toward a collection gutter and said collection gutter has passageways through the bottom thereof to discharge liquid therefrom.
Claim 5
Dependent Claim
27 words
The device of claim 3 wherein said collection gutter is parallel to said rail-engaging member and one wall of said collection gutter is common with a sidewall.
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) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |