US4232481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet of vegetable matter
Assignee: Individual
•
Filing: 1979-07-31
•
Granted: 1980-11-11
•
Expires: 1999-07-31
Abstract
Abstract In the production of a carpet of grass or other vegetable matter, a compost made from wood bark which is crushed and gauged, is spread onto a substantially flat surface impermeable to plant roots, the compost being mixed with seed before, during, or after, application of the flat surface. The roots of the plants formed from the seed form a fabric embedded in the compost. The carpet thus formed may be easily detached from the flat surface.
Inventors
- 👤 Michel C. Chamoulaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:08
CPC Classifications
A; A01; A01G; A01G20/00; A01G20/20; Y; Y10; Y10S; Y10S111/00; Y10S111/901
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
71 words
A transportable carpet sheet of grass, said carpet sheet comprising a thin layer of compost consisting essentially of finely crushed and gauged conifer bark the particles of which have a section of not more than 100 sq mm and a diameter of at least 1 mm, and grass having whole roots embedded into the compost to form a supporting fabric therein for the sheet, the sheet thickness being approximately 2 cm.
Claim 2
Dependent Claim
71 words
A transportable carpet sheet of grass, said carpet sheet comprising a thin layer of compost consisting essentially of finely crushed and gauged conifer bark the particles of which have a section of not more than 100 sq mm and a diameter of at least 1 mm, and grass having whole roots embedded into the compost to form a supporting fabric therein for the sheet, the sheet thickness being approximately 2 cm.
Claim 3
Dependent Claim
16 words
A carpet according to claim 1, wherein the carpet is in the form of a strip.
Claim 4
Dependent Claim
14 words
A carpet according to claim 1, wherein the carpet is wound into a roll.
Claim 5
Dependent Claim
116 words
A process for producing a transportable carpet sheet of grass, said process comprising forming a compost consisting essentially of conifer bark which is finely crushed and gauged, and is composed of particles having a section of not more than 100 sq mm and a diameter of at least 1 mm; mixing the compost with grass seed; providing a substantially flat surface impermeable to plant roots; mechanically metering and spreading a thin layer of the compost mixed with seed on said surface; permitting growth of grass from the seed by watering, fertilizing and mowing until the roots of the grass form a fabric embedded in the compost; and detaching the carpet thus formed from the said surface.
Claim 6
Dependent Claim
116 words
A process for producing a transportable carpet sheet of grass, said process comprising forming a compost consisting essentially of conifer bark which is finely crushed and gauged, and is composed of particles having a section of not more than 100 sq mm and a diameter of at least 1 mm; mixing the compost with grass seed; providing a substantially flat surface impermeable to plant roots; mechanically metering and spreading a thin layer of the compost mixed with seed on said surface; permitting growth of grass from the seed by watering, fertilizing and mowing until the roots of the grass form a fabric embedded in the compost; and detaching the carpet thus formed from the said surface.
Claim 7
Dependent Claim
19 words
A process according to claim 4, comprising fertilizing the compost by introducing lime, nitrogen, phosphoric acid and potash therein.
Claim 8
Dependent Claim
25 words
A process according to claim 4, wherein the said substantially flat surface is constituted by a finely perforated plastics film, laid on a previously-levelled ground.
Claim 9
Dependent Claim
12 words
A process according to claim 6, wherein the plastics film is opaque.
Claim 10
Dependent Claim
59 words
A process according to claim 4, comprising forming in the previously-levelled ground a shallow depression of strip-like form having a substantially flat bottom surface, and laying the plastics film in said depression, the width of the film being slightly greater than the width of the depression whereby the film covers the bottom surface and the sides of the depression.
Claim 11
Dependent Claim
24 words
A process according to claim 4, wherein the seed is allowed to pre-germinate in the compost before the latter is spread onto said surface.
Claim 12
Dependent Claim
16 words
A process according to claim 4, comprising adding a binder to the compost and seed mixture.
Claim 13
Dependent Claim
27 words
A process according to claim 4, comprising adding to the compost and seed mixture delayed-action fertilisers which release the active substances progressively over a period of time.
Claim 14
Dependent Claim
26 words
A process according to claim 4, comprising storing the grass carpet in a watertight plastics packing at a temperature from about -2° C. to +4° C.
Claim 15
Dependent Claim
32 words
A process according to claim 4, comprising storing the carpet in an enclosed environment having a moisture content greater than about 80% and a temperature from about -2° C. to +4° C.
Claim 16
Dependent Claim
21 words
A process according to claim 4, wherein the seed is mixed with the compost prior to application to the said surface.
Claim 17
Dependent Claim
23 words
A process according to claim 4, wherein the seed is mixed with the compost after application of the compost to the said surface.
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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) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |