US3834072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shape-retaining substrate for a plant and method of making the same
Assignee: Individual
•
Filing: 1973-09-17
•
Granted: 1974-09-10
•
Expires: 1993-09-17
Abstract
Abstract A shape-retaining substrate for a plant comprises a mixture of 30 to 60 parts of dried peatmoss, 50 to 20 parts of foam flakes, a plant nutrient, and 15 to 20 parts of a polyurethane binder free of foaming agent which bonds the peatmoss, the foam flakes and the nutrient. The substrate is made by reacting the polyurethane constituents in situ with the peatmoss, foam flakes and nutrient mixture.
Inventors
- 👤 D Rack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:18
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/02; A01G9/029; A01G9/0291; A01G20/00; A01G24/00; A01G24/20; A01G24/28; A01G24/30; A01G24/40; A01G24/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
24 words
The shape-retaining substrate of claim 1, wherein the mixture comprises about 45 parts of peatmoss and about 45 to 40 parts of foam flakes.
Claim 2
Dependent Claim
19 words
The shape-retaining substrate of claim 1, wherein the foam flakes have a diameter of about 5 to 15 mm.
Claim 3
Dependent Claim
23 words
The shape-retaining substrate of claim 1, further comprising from about 0.7 to 1 part, be weight, of a wetting agent for the peatmoss.
Claim 4
Dependent Claim
37 words
The shape-retaining substrate of claim 1, wherein the plant is in the form of a seed on the surface of the substrate and a retaining layer is arranged over the seed on the surface of the substrate.
Claim 5
Dependent Claim
25 words
The shape-retaining substrate of claim 1, and being plate-shaped, further comprising a reinforcing net, and grass on the surface of the substrate constituting the plant.
Claim 6
Independent Claim
106 words
A method of making a shape-retaining substrate for a plant, which comprises mixing, in the absence of a foaming agent, 15 to 20 parts of liquid reactants forming a polyurethane binder in situ with 30 to 60 parts of peatmoss having a water content reduced to about 15% to less thaN 20%, by weight, 50 to 20 parts of synthetic resin foam flakes, a plant nutrient, and about 0.7 to 1 part of a wetting agent for the peatmoss, all parts being by weight, and shaping the mixture to form the substrate, the polyurethane bonder formed in situ bonding the peatmoss, the foam flakes and nutrients.
References Cited (Backward Citations)
CA722589A
Cited
US1446113A
Cited
US2971292A
Cited
US2965584A
Cited
US2988441A
Cited
US3080681A
Cited
US3472644A
Cited
DE1949462A1
Cited
DE1949473A1
Cited
DE2013352A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |