Patent US4099345A successfully refreshed from Google Patents.
US4099345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of turf
Assignee: KAPAG Manufacturing CO Ltd
•
Filing: 1976-11-08
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Granted: 1978-07-11
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Expires: 1996-11-08
Abstract
Abstract In the production of turf, a growing medium including particulate lignite is mixed with grass seed and is then spread out on a water-impervious bed between two parallel kerbs. The bed may comprise flexible plastics sheeting which serves as a backing when the turf is removed from between the kerbs and rolled up.
Inventors
- 👤 Frederic Walter Loads
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:09
CPC Classifications
C; C05; C05F; C05F11/00; A; A01; A01G; A01G20/00; A01G20/20; Y; Y10; Y10S; Y10S111/00; Y10S111/901
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
54 words
A method of producing turf comprising establishing a layer of growing medium including grass seed on a water-impervious bed between parallel kerbs and, when predetermined growth has taken place, removing the layer from between the kerbs, said growing medium comprising lignite together with a particulate filler and a binding agent comprising pulverised paper pulp.
Claim 2
Independent Claim
54 words
A method of producing turf comprising establishing a layer of growing medium including grass seed on a water-impervious bed between parallel kerbs and, when predetermined growth has taken place, removing the layer from between the kerbs, said growing medium comprising lignite together with a particulate filler and a binding agent comprising pulverised paper pulp.
Claim 3
Dependent Claim
46 words
A method of producing turf according to claim 1, wherein said water-impervious bed comprises a flexible sheet and the layer of grown turf and sheet are removed together, the sheet being rolled with the turf as a backing to be stripped off before laying the turf.
Claim 4
Dependent Claim
47 words
A method of producing turf according to claim 2, wherein the kerbs are positioned on a level site, transverse boards are positioned at the ends of the kerbs to form a frame, sand is placed within the frame and the flexible sheeting is laid on the sand.
Claim 5
Dependent Claim
47 words
A method of producing turf according to claim 2, wherein the kerbs are placed on a firm flat level base, transverse boards are positioned at the ends of the kerbs to form a frame and the flexible sheeting is laid directly on the firm flat level base.
Claim 6
Dependent Claim
22 words
A method of producing turf according to claim 1, wherein the flexible sheet is of synthetic plastics material such as polyethylene sheeting.
Claim 7
Dependent Claim
35 words
A method of producing turf according to claim 1, wherein the thickness of the spread layer is as little as 1/4 inch, the strong intertwining root formation providing the requisite tensile strength without further support.
Claim 8
Dependent Claim
44 words
A method of producing turf according to claim 1, wherein the mixture of growing medium and grass seed is held in a moistened state under conditions favouring germination of the grass seed before it is spread in a thin layer upon the water-impervious bed.
Claim 9
Dependent Claim
47 words
A method of producing turf according to claim 7, wherein the mixture is held up to the germination stage indoors and, as soon as chitting of the grass seed appears, is taken outside and spread in a thin layer upon the water-impervious bed for growing the turf.
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) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |