US3144376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating board of fibrous glass and method and apparatus for making same
Assignee: Owens Corning
•
Filing: 1957-10-18
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Granted: 1964-08-11
•
Expires: 1977-10-18
Abstract
No abstract record available.
Inventors
- 👤 Leonard J Plumberg
- 👤 August C Theroff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:08
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24; E04C2/246; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249933; Y10T428/249939; Y10T428/24994; Y10T428/24995; Y10T428/26; Y10T428/266; Y10T442/00; Y10T442/60; Y10T442/659; Y10T442/67
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A THERMAL INSULATING ROOFING BOARD INCLUDING A BASE PANEL AT LEAST ONE HALF INCH IN THICKNESS, SAID BASE PANEL COMPRISING A HIGHLY POROUS, LOW DENSITY, SUBSTANTIALLY RIGID BODY OF MINERAL FIBERS, AND A CURED THERMOSETTING BINDER DISPERSED THROUGH THE BODY BONDING THE FIBERS TOGETHER AND HOLDING THE BODY TO A DEFINITE THICKNESS, SAID ROOFING BOARD FURTHER INCLUDING A DISTINCT STRATUM OF FIBROUS GLASS ELEMENTS OVER THE BASE PANEL, A COVERING SHEET DISPOSED OVER THE STRATUM OF FIBROUS GLASS ELEMENTS, AND A THERMOPLASTIC BINDER, IN WHICH THE FIBROUS GLASS ELEMENTS ARE COMPLETELY EMBEDDED, SAID THERMOPLASTIC BINDER HOLDING THE FIBROUS GLASS ELEMENTS IN FIXED POSITION RELATIVE TO EACH OTHER AND COHERING THE BASE PANEL, FIBROUS GLASS ELEMENTS AND COVERING SHEET, SAID COVERING SHEET BEING SUFFICIENTLY REINFORCED BY SAID THERMOPLASTIC BINDER AND FIBROUS GLASS ELEMENTS TO PROVIDE THE ROOFING BOARD WITH A TOUGH, RUPTURE AND COMPRESSION RESISTING SURFACE.
Claim 2
Dependent Claim
145 words
A THERMAL INSULATING ROOFING BOARD INCLUDING A BASE PANEL AT LEAST ONE HALF INCH IN THICKNESS, SAID BASE PANEL COMPRISING A HIGHLY POROUS, LOW DENSITY, SUBSTANTIALLY RIGID BODY OF MINERAL FIBERS, AND A CURED THERMOSETTING BINDER DISPERSED THROUGH THE BODY BONDING THE FIBERS TOGETHER AND HOLDING THE BODY TO A DEFINITE THICKNESS, SAID ROOFING BOARD FURTHER INCLUDING A DISTINCT STRATUM OF FIBROUS GLASS ELEMENTS OVER THE BASE PANEL, A COVERING SHEET DISPOSED OVER THE STRATUM OF FIBROUS GLASS ELEMENTS, AND A THERMOPLASTIC BINDER, IN WHICH THE FIBROUS GLASS ELEMENTS ARE COMPLETELY EMBEDDED, SAID THERMOPLASTIC BINDER HOLDING THE FIBROUS GLASS ELEMENTS IN FIXED POSITION RELATIVE TO EACH OTHER AND COHERING THE BASE PANEL, FIBROUS GLASS ELEMENTS AND COVERING SHEET, SAID COVERING SHEET BEING SUFFICIENTLY REINFORCED BY SAID THERMOPLASTIC BINDER AND FIBROUS GLASS ELEMENTS TO PROVIDE THE ROOFING BOARD WITH A TOUGH, RUPTURE AND COMPRESSION RESISTING SURFACE.
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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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |