US4263356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auto ceiling panel
Assignee: Toyota Motor Corp
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Filing: 1978-08-03
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Granted: 1981-04-21
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Expires: 1998-08-03
Abstract
Abstract An auto ceiling panel takes the form of a laminate composed of a permeable ceiling surface skin, a first layer of porous continuous bubble plastic foam attached to the skin, a second foamed plastic layer with numerous through holes attached to the first layer, and a third foamed plastic layer with through holes of a larger diameter than the holes in the second layer. A metal lath is between the second and third layers, and the second and third layers are fused to the metal lath.
Inventors
- 👤 Takao Nomura
- 👤 Tatsuo Sakamoto
- 👤 Yoshiro Umemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:32
CPC Classifications
B; B32; B32B; B32B3/00; B32B3/10; B32B5/00; B32B5/22; B32B5/32; B32B15/00; B32B15/04; B32B15/046; B32B3/26; B32B3/266; B32B5/18; B60; B60R; B60R13/00; B60R13/02; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/025; B32B2266/0278; B32B2607/00; B60R13/0212; B60R13/0225; B60R13/08; B60R13/0815; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/249921; Y10T428/249953; Y10T428/249981
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
180 words
An auto ceiling panel comprising: a porous skin having attached thereto a first foamed continuous bubble porous polyurethane slab, having a thickness of 1.0 to 8.0 mm, a second foamed polyethylene slab attached to the ceiling side of said first slab, said second slab having a thickness of 1.0 to 4.0 mm and a plurality of openings bored therethrough, said openings having each a diameter of 0.1 to 5.0 mm and their total open space amounting to 0.5% to 30% of the total surface area of said second slab, a metal lath fused to said second slab having a thickness of 0.5 to 1.5 mm, and a third foamed polyethylene slab fused to said metal lath, said third slab having a thickness of 1.0 to 4.0 mm and a plurality of openings bored therethrough, said openings having each a diameter of 1.0 to 10 mm and their total open space amounting to 1.0 to 50% of the total surface area of said third slab and a majority thereof being in communicating relation relative to the openings in the second slab.
Claim 2
Dependent Claim
180 words
An auto ceiling panel comprising: a porous skin having attached thereto a first foamed continuous bubble porous polyurethane slab, having a thickness of 1.0 to 8.0 mm, a second foamed polyethylene slab attached to the ceiling side of said first slab, said second slab having a thickness of 1.0 to 4.0 mm and a plurality of openings bored therethrough, said openings having each a diameter of 0.1 to 5.0 mm and their total open space amounting to 0.5% to 30% of the total surface area of said second slab, a metal lath fused to said second slab having a thickness of 0.5 to 1.5 mm, and a third foamed polyethylene slab fused to said metal lath, said third slab having a thickness of 1.0 to 4.0 mm and a plurality of openings bored therethrough, said openings having each a diameter of 1.0 to 10 mm and their total open space amounting to 1.0 to 50% of the total surface area of said third slab and a majority thereof being in communicating relation relative to the openings in the second slab.
Claim 3
Dependent Claim
13 words
The panel of claim 1 wherein said skin is a permeable cloth material.
Claim 4
Dependent Claim
23 words
Auto ceiling panel of claim 1, wherein said second foamed plastic layer and said third foamed plastic layer are 0.02-0.1 in specific gravity.
Claim 5
Dependent Claim
25 words
Auto ceiling panel of claim 1, wherein said first foamed plastic layer is a foamed polyurethane slab 1.0-8.0 mm thick and 0.01-0.05 in specific gravity.
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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) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |