Patent US4753837A successfully refreshed from Google Patents.
US4753837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel laminated panel
Assignee: Bayer Corp
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Filing: 1987-05-11
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Granted: 1988-06-28
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Expires: 2007-05-11
Abstract
Abstract The present invention is directed to a laminated panel comprising (a) a facing material, (b) a rigid foam adhered to said facing material, and (c) a three dimensional, open mesh structure either attached to or being an integral part of the inside surface of said facing material, said three dimensional, open mesh structure characterized as (i) being produced from relatively long fibers having length to diameter ratios of 50 or more (ii) being sufficiently open so that said foam penetrates through it to said facing material, (iii) being sufficiently stiff so that it will substantially retain its original three dimensional structure in the laminated panel, (iv) being sufficiently adhered to said facing material so that it will not pull away from said facing material during the production of said panel, and (v) having a thickness of at least five times the diameter of the fiber used to produce said mesh structure.
Inventors
- 👤 Lothar H. Hanusa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:51
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/18; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/1209; B29C44/1228; B32B5/22; B32B5/24; B32B5/245; E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/296; B29K; B29K2075/00; B29K2105/00; B29K2105/06; B29K2105/20; B29K2105/206; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2305/00; B32B2305/38; B32B2307/00; B32B2307/70; B32B2307/724; B32B2307/7242; B32B2607/00; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23914; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24339; Y10T428/249921; Y10T428/249953; Y10T428/24996; Y10T428/249986
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
145 words
A laminated panel comprising (a) a facing material, (b) a rigid foam adhered to said facing material, and (c) a three dimensional, open mesh structure either attached to or being an integral part of the inside surface of said facing material, said three dimensional, open mesh structure characterized as (i) being produced from relatively long fibers having length to diameter ratios of 50 or more (ii) being sufficiently open so that said foam penetrates through it to said facing material, (iii) being sufficiently stiff so that it will substantially retain its original three dimensional structure in the laminated panel, (iv) being sufficiently adhered to said facing material so that it will not pull away from said facing material during the production of said panel, and (v) having a thickness of at least five times the diameter of the fiber used to produce said mesh structure.
Claim 2
Dependent Claim
145 words
A laminated panel comprising (a) a facing material, (b) a rigid foam adhered to said facing material, and (c) a three dimensional, open mesh structure either attached to or being an integral part of the inside surface of said facing material, said three dimensional, open mesh structure characterized as (i) being produced from relatively long fibers having length to diameter ratios of 50 or more (ii) being sufficiently open so that said foam penetrates through it to said facing material, (iii) being sufficiently stiff so that it will substantially retain its original three dimensional structure in the laminated panel, (iv) being sufficiently adhered to said facing material so that it will not pull away from said facing material during the production of said panel, and (v) having a thickness of at least five times the diameter of the fiber used to produce said mesh structure.
Claim 3
Dependent Claim
14 words
The panel of claim 1, wherein said foam is a polyurethane and/or polyisocyanurate foam.
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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) | 1991-06-28 | 1991-12-28 | 1992-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-28 | 1995-12-28 | 1996-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-28 | 1999-12-28 | 2000-06-28 | $7700.00 | Window Closed / Lapsed |