US3853683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roofing board of fibrous glass
Assignee: Owens Corning
•
Filing: 1969-04-01
•
Granted: 1974-12-10
•
Expires: 1989-04-01
Abstract
Abstract A generally air permeated, thermal insulating roofing board of bonded, randomly and spacedly positioned individual, discontinuous glass fibers, short bundles or strands of glass fibers uniformly distributed in intermixed and bonded relation with the individual glass fibers throughout a comparatively narrow stratum of the board adjoining one planar surface thereof, said stratum being saturated with asphalt, and a comparatively stiff and solid surfacing sheet of asphaltic and polymeric materials reinforced with fibrous glass secured to the roofing board over the narrow stratum thereof.
Inventors
- 👤 S Stapleford
- 👤 C Nutter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:50
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/02; D; D06; D06N; D06N5/00; E; E04; E04D; E04D3/00; E04D3/35; E04D3/351; E04D3/352; B32B2315/00; B32B2315/08; B32B2315/085; B32B2419/00; B32B2419/06; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31551; Y10T428/31641; Y10T442/00; Y10T442/60; Y10T442/659; Y10T442/67; Y10T442/674; Y10T442/679
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
81 words
A POROUS, GENERALLY HIGHLY AIR PERMEATED. THERMAL INSULATING, BONED GLASS ROOFING BOARD AT LEAST ONE INCH IN THICKNESS HAVING A PERFORMED, COMPARATIVELY SOLID AND RIDIG SURFAC ING SHEET ATTACHED THERETO, SAID SHEET BEING COMPOSED OF A BLEND OF ASPHALT AND A POLYMERIC ELASTOMER AND BEING REINFORCED WITH FIBROUS GLASS EMBEDDED THEREIN , AND SAID ROOFING BOARD HAVING RANDOMLY POSITIONM INDIVIDUAL, NON-CONTINUOUS GLASS FIBERS EXTENDING IN SPACED AND RESINOUSLY BONDED RELATION THROUGHOUT THE FULL AREA OF THE BOARD BENEATH THE SURFACEING SHEET.
Claim 2
Dependent Claim
81 words
A POROUS, GENERALLY HIGHLY AIR PERMEATED. THERMAL INSULATING, BONED GLASS ROOFING BOARD AT LEAST ONE INCH IN THICKNESS HAVING A PERFORMED, COMPARATIVELY SOLID AND RIDIG SURFAC ING SHEET ATTACHED THERETO, SAID SHEET BEING COMPOSED OF A BLEND OF ASPHALT AND A POLYMERIC ELASTOMER AND BEING REINFORCED WITH FIBROUS GLASS EMBEDDED THEREIN , AND SAID ROOFING BOARD HAVING RANDOMLY POSITIONM INDIVIDUAL, NON-CONTINUOUS GLASS FIBERS EXTENDING IN SPACED AND RESINOUSLY BONDED RELATION THROUGHOUT THE FULL AREA OF THE BOARD BENEATH THE SURFACEING SHEET.
Claim 3
Dependent Claim
47 words
A roofing board according to claim 1 in which there is a narrow stratum immediately below the surfacing sheet which is reinforced by short bundles or strands of multiple glass fibers resinously bonded to the non-continuous fibers, the said stratum being further bonded by an asphaltic impregnation.
Claim 4
Dependent Claim
31 words
A roofing board according to claim 1 in which the polymeric elastomer is a minor component of the surfacing sheet in an amount between five and thirty per cent by volume.
Claim 5
Dependent Claim
24 words
A roofing board according to claim 1 in which the surfacing sheet is between one sixteenth and one eighth of an inch in thickness.
Claim 6
Dependent Claim
20 words
A roofing board according to claim 1 in which the surfacing sheet is attached to the roofing board by asphalt.
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US2523759A
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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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |