← Back to Patent Explorer
US4283880A Expired / Lapsed US ⏱️ 0.0 years remaining

Peat paper and a method for its manufacture

Assignee: Individual
•
Filing: 1979-10-23
•
Granted: 1981-08-18
•
Expires: 1999-10-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A peat paper used to improve the quality of the soil in connection with planting, sowing or weed-control. The paper consists of peat fibres (4), cellulose fibres (1), and a bonding agent. The disclosure also teaches the method of producing said peat paper. The peat paper is characterized in that in a lower layer the cellulose fibres (1) support the peat fibres (4) and in that the cellulose fibres and peat fibres (1,4) are bonded together by means of the bonding agent in a dry-formation process so as to form paper-like sheets or webs. The resulting peat paper is soft and owing to its method of production controlled amounts and/or layers of additives, such as fertilizers, seeds, hormones, and similar additives may be incorporated into the paper.

Inventors

  • 👤 Oyvind Fjeldsa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 13:30
CPC Classifications
A; A01; A01C; A01C1/00; A01C1/04; A01C1/046; A01C1/044; A01G; A01G20/00; A01G20/20; C; C09; C09K; C09K17/00; C09K17/52; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/28

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 81 words
An improved peat paper for use in connection with planting, sowing or weed-control containing peat fibers, cellulose fibers and a bonding agent; the improvement comprising: said cellulose fibers being a sheet or web supporting said peat fibers, said peat fibers being loose, noncompressed fibers and being joined to said cellulose fibers in a dry-formation process and by means of said bonding agent so as to form paper-like sheets or webs having a weight in the range of 100 to 350 g/cm.
Claim 2
Dependent Claim 81 words
An improved peat paper for use in connection with planting, sowing or weed-control containing peat fibers, cellulose fibers and a bonding agent; the improvement comprising: said cellulose fibers being a sheet or web supporting said peat fibers, said peat fibers being loose, noncompressed fibers and being joined to said cellulose fibers in a dry-formation process and by means of said bonding agent so as to form paper-like sheets or webs having a weight in the range of 100 to 350 g/cm.
Claim 3
Dependent Claim 34 words
An improved peat paper as claimed in claim 1 containing additives, such as hormones, fertilizers, chemicals and similar additives being applied in powder form to said peat fibers before application of said bonding agent.
Claim 4
Dependent Claim 21 words
An improved peat paper as claimed in claim 2 containing at least one kind of seed admixed into said peat fibers.

References Cited (Backward Citations)

US2909003A Cited
US2876588A Cited
US2826865A Cited
US4066490A Cited
US3914901A Cited
US4190981A Cited
US4173844A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-08-17 1985-02-16 1985-08-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-08-17 1989-02-16 1989-08-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-08-17 1993-02-16 1993-08-18 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag