Patent US4525970A successfully refreshed from Google Patents.
US4525970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated wall construction
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1983-07-11
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Granted: 1985-07-02
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Expires: 2003-07-11
Abstract
Abstract Each square fibrous insulation board has a scrim adhered to an outer side thereof and extending beyond two opposite edges thereof to provide a pair of opposite scrim flaps. The boards are oriented alternately at ninety degrees to each other on a wall to be insulated, whereby every horizontal joint and every vertical joint between adjacent boards is covered by a scrim flap. A cementitious coating is applied over the boards and scrim.
Inventors
- 👤 Michael E. Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:04
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78; E04B1/762; E04B1/7654; E04B1/7658; E04B1/7662; E04B1/7666; E04B1/767
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
An insulated outer wall construction for a building, said wall construction comprising a structural outer wall, a plurality of square fibrous glass insulation boards mounted in covering relationship to said outer wall on a side thereof facing outwardly of the building, each of said boards having a scrim adhesively secured thereto on an outer side, the scrim extending beyond the board respectively along two opposite edges thereof to provide a pair of flaps for respectively overlapping joints between adjacent boards, the boards of each pair of adjacent boards being oriented ninety degrees from each other whereby every joint between boards is overlapped by a scrim flap, and a coat of cementitious material covering said boards and scrim.
Claim 2
Dependent Claim
117 words
An insulated outer wall construction for a building, said wall construction comprising a structural outer wall, a plurality of square fibrous glass insulation boards mounted in covering relationship to said outer wall on a side thereof facing outwardly of the building, each of said boards having a scrim adhesively secured thereto on an outer side, the scrim extending beyond the board respectively along two opposite edges thereof to provide a pair of flaps for respectively overlapping joints between adjacent boards, the boards of each pair of adjacent boards being oriented ninety degrees from each other whereby every joint between boards is overlapped by a scrim flap, and a coat of cementitious material covering said boards and scrim.
Claim 3
Dependent Claim
16 words
A wall construction as claimed in claim 1 wherein the scrim is woven glass fiber scrim.
Claim 4
Dependent Claim
23 words
A wall construction as claimed in claim 1 wherein the fibrous glass boards have a density of about four pounds per cubic foot.
Claim 5
Dependent Claim
27 words
A wall construction as claimed in claim 1 wherein the fibrous glass boards comprise glass fibers impregnated with about thirteen percent by weight of a resin binder.
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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) | 1988-07-01 | 1988-12-31 | 1989-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-01 | 1992-12-31 | 1993-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-01 | 1996-12-31 | 1997-07-02 | $7700.00 | Window Closed / Lapsed |