US3867241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminar disc of mineral wool
Assignee: Rockwool AB
•
Filing: 1973-04-23
•
Granted: 1975-02-18
•
Expires: 1993-04-23
Abstract
Abstract A mineral wool article formed of a plurality of layers of mineral wool discs bonded into a laminated product, said layers having bent edges relative to the interior part of the layers.
Inventors
- 👤 Ulf Karl Henrik Haglund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:05
CPC Classifications
C; C04; C04B; C04B30/00; C04B30/02; B; B32; B32B; B32B19/00; B32B19/04; D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4209; D04H1/4218; D04H1/54; D04H1/559; D04H1/58; D04H1/593; B32B2262/00; B32B2262/10; B32B2315/00; B32B2315/14; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T428/00; Y10T428/21; Y10T428/24; Y10T428/2419; Y10T428/24264; Y10T428/24777; Y10T428/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
53 words
An article of mineral wool comprising a plurality of layers of fibrous mineral wool discs bonded together to form a laminated product, said layers of said laminated product having bent edges relative to the interior part of said layers, said interior part comprising a major part of the width of said laminated product.
Claim 2
Dependent Claim
53 words
An article of mineral wool comprising a plurality of layers of fibrous mineral wool discs bonded together to form a laminated product, said layers of said laminated product having bent edges relative to the interior part of said layers, said interior part comprising a major part of the width of said laminated product.
Claim 3
Dependent Claim
23 words
An article according to claim 1, in which the layers run at least substantially perpendicularly to the level proper of the laminated product.
Claim 4
Dependent Claim
29 words
An article according to claim 1, in which the bent edges have a width of at least 1/20 and up to 1/5 of the thickness of the laminated product.
Claim 5
Dependent Claim
19 words
An article according to claim 1 in which said layers bend perpendicular to a section of the laminated product.
Claim 6
Dependent Claim
12 words
An article according to claim 4 wherein said layers are wave shaped.
Claim 7
Dependent Claim
27 words
An article according to claim 5, in which the amplitude of said wave-shaped layers is at least equal to half of the thickness of the laminated product.
Claim 8
Dependent Claim
27 words
AN ARTICLE ACCORDING TO CLAIM 5, IN WHICH THE WAVE LENGTH OF THE LAMINATE PRODUCT IS AT LEAST EQUAL TO THE AMPLITUDE UP TO FOUR-FOLD THE AMPLITUDE.
References Cited (Backward Citations)
US2165280A
Cited
US2564941A
Cited
US3141811A
Cited
US3383272A
Cited
US3390403A
Cited
US3345643A
Cited
US3642560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |