Patent US4258520A successfully refreshed from Google Patents.
US4258520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple panel building closure
Assignee: MILL CRAFT HOUSING CORP
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Filing: 1979-10-19
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Granted: 1981-03-31
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Expires: 1999-10-19
Abstract
Abstract A plurality of pultruded panels of high strength metal and/or glass fiber reinforced polyester resin are interlocked and sealed at their mating edges to provide an integral wall or roof closure member for a building. The member may have various configurations to provide greater self-supporting rigidity and may constitute the outside of a composite wall employing a smooth inner sheet with a rigid foamed plastic material filling the space between.
Inventors
- 👤 Erwin G. Rehbein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:44
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/35; E04D3/351; E04D3/352; E04B; E04B7/00; E04B7/20; E04B7/22; E04C; E04C2/00; E04C2/30; E04C2/40; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
77 words
A multiple panel building closure, comprising an integral wall member constructed of pultruded reinforced resin panels having accurately formed mating edges, double-mortise joints interlocking said panels together uniformly along their co-extensive mating edges, a fastening flange disposed on each panel for securing the panel to a building element, and a sealant embedding the tenons of said joints, to thereby provide a self-supporting hermetically sealed closure member generally co-extensive with a side or roof section of a building.
Claim 2
Dependent Claim
77 words
A multiple panel building closure, comprising an integral wall member constructed of pultruded reinforced resin panels having accurately formed mating edges, double-mortise joints interlocking said panels together uniformly along their co-extensive mating edges, a fastening flange disposed on each panel for securing the panel to a building element, and a sealant embedding the tenons of said joints, to thereby provide a self-supporting hermetically sealed closure member generally co-extensive with a side or roof section of a building.
Claim 3
Dependent Claim
100 words
A building construction, comprising a plurality of panels each formed of pultruded reinforced thermosetting resin, a male tenon disposed adjacent one edge of each panel, a female tenon disposed adjacent an opposite edge of each panel, a male tenon of one panel being engaged with a female tenon of a second panel to provide an interlocked joint between the panels, a fastening flange disposed adjacent the male tenon and disposed at an angle with respect to said male tenon, a wall member secured to said flange, and a sealing material disposed within said joint to provide a self-supporting panel structure.
Claim 4
Dependent Claim
100 words
A building construction, comprising a plurality of panels each formed of pultruded reinforced thermosetting resin, a male tenon disposed adjacent one edge of each panel, a female tenon disposed adjacent an opposite edge of each panel, a male tenon of one panel being engaged with a female tenon of a second panel to provide an interlocked joint between the panels, a fastening flange disposed adjacent the male tenon and disposed at an angle with respect to said male tenon, a wall member secured to said flange, and a sealing material disposed within said joint to provide a self-supporting panel structure.
Claim 5
Dependent Claim
39 words
The construction of claim 2, wherein said male tenon includes a base portion joined to the panel and an outer portion extending generally laterally from said panel, said flange being connected to the base portion of the male tenon.
Claim 6
Dependent Claim
34 words
The construction of claim 3, wherein the flange lies in a plane generally parallel to the plane of the panel and extends at an angle of about 90° with respect to the male tenon.
Claim 7
Dependent Claim
20 words
The construction of claim 2, and including a layer of insulating material disposed between each panel and the wall member.
References Cited (Backward Citations)
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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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |