US4296169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wallboard having improved drying rate due to plural contacting fiber networks
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1980-02-04
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Granted: 1981-10-20
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Expires: 2000-02-04
Abstract
Abstract A board comprising: two sheets of paper spaced apart and bonded to a core of inorganic cementitious material, said core having a network of glass monofilaments jack-strawed into a three-dimensional water transmitting network extending between its surfaces, and at least one of said layers of paper having a network of glass monofilaments jack-strawed into a water transmitting network that extends between its major surfaces with said network in said paper being in water transmitting contact with said network of said core. Preferably the core is gypsum having a density of about 40-65 pounds per cubic foot.
Inventors
- 👤 Richard F. Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:23
CPC Classifications
B; B32; B32B; B32B13/00; B32B13/04; B32B13/08; E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/043; B32B2607/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249926; Y10T428/249932; Y10T428/27; Y10T428/31504; Y10T428/31551; Y10T428/31634; Y10T428/31971; Y10T428/31993; Y10T428/31996
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
83 words
A board comprising: two sheets of paper spaced apart and bonded to a core of inorganic cementitious material, said core having a network of dispersed glass monofilaments jack-strawed into a three-dimensional water transmitting network extending between its surfaces, and at least one of said layers of paper having a network of dispersed glass monofilaments jack-strawed into a water transmitting network that extends between its major surfaces with said network in said paper being in water transmitting contact with said network of said core.
Claim 2
Dependent Claim
83 words
A board comprising: two sheets of paper spaced apart and bonded to a core of inorganic cementitious material, said core having a network of dispersed glass monofilaments jack-strawed into a three-dimensional water transmitting network extending between its surfaces, and at least one of said layers of paper having a network of dispersed glass monofilaments jack-strawed into a water transmitting network that extends between its major surfaces with said network in said paper being in water transmitting contact with said network of said core.
Claim 3
Dependent Claim
15 words
The board of claim 1 wherein both sheets of paper have said monofilament network therein.
Claim 4
Dependent Claim
36 words
The board of claim 2 wherein said sheets of paper have between 0.05% and 1.0% by weight of said monofilaments therein and between 1,200 and 20,000 lineal inches of monofilaments per cubic inch of core material.
Claim 5
Dependent Claim
11 words
The board of claim 3 wherein said cementitious material comprises gypsum.
Claim 6
Dependent Claim
18 words
The board of claim 1 wherein said core has a density of about 40-65 pounds per cubic foot.
Claim 7
Dependent Claim
16 words
The board of claim 1 wherein said monofilaments have a diameter of less than 0.00080 inch.
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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) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |