US4554205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated sailcloth
Assignee: North Sails Group Inc
•
Filing: 1985-03-07
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Granted: 1985-11-19
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Expires: 2005-03-07
Abstract
Abstract An improved sailcloth is composed of a laminate of two fabrics, are being tightly woven, light weight, highly resinated cloth, and the other being a loosely woven or knit fabric.
Inventors
- 👤 Peter Mahr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:55
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B5/02; B32B5/024; B32B5/026; B32B7/00; B32B7/04; B32B7/12; B63; B63H; B63H9/00; B63H9/04; B63H9/06; B63H9/067; B32B2605/00; B32B2605/12; Y; Y10; Y10T; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/348; Y10T442/3496
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
64 words
An improved sailcloth comprising first and second fabric plies laminated together with an adhesive, said first ply being a tightly woven, resinated cloth having a combined relative cover factor in the warp and weft directions of at least 1800, said second fabric ply having a relative cover factor of less than 1000 in the warp direction and less than 700 in the weft direction.
Claim 2
Dependent Claim
64 words
An improved sailcloth comprising first and second fabric plies laminated together with an adhesive, said first ply being a tightly woven, resinated cloth having a combined relative cover factor in the warp and weft directions of at least 1800, said second fabric ply having a relative cover factor of less than 1000 in the warp direction and less than 700 in the weft direction.
Claim 3
Dependent Claim
15 words
The improved sailcloth of claim 1 wherein said second fabric ply is a loose weave.
Claim 4
Dependent Claim
15 words
The improved sailcloth of claim 1 wherein said second fabric ply is a loose knit.
Claim 5
Dependent Claim
38 words
The improved sailcloth of claim 1 wherein the first fabric has a relative cover factor in the warp and weft direction as follows: ______________________________________
Warp Fill
______________________________________
800 to 100 >1000
1000 to 1500 >900
>1500 >800.
______________________________________
Claim 6
Dependent Claim
22 words
The improved sailcloth of claim 4 wherein said first fabric has a weight of less than 4 oz. per sailmaker's square yard.
Claim 7
Dependent Claim
33 words
The improved sailcloth of claim 1 wherein said first and second fabric plies are both woven from yarns and are laminated together with their yarns in parallel for improved strength and stretch resistance.
Claim 8
Dependent Claim
29 words
The improved sailcloth of claim 6 wherein the laminated cloth has a greater strength in the direction of the yarns than a single ply cloth of the same weight.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |