US4498272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel fastener
Assignee: Rollform Inc
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Filing: 1982-05-20
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Granted: 1985-02-12
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Expires: 2002-05-20
Abstract
Abstract An improved panel or wallboard fastener for securing a panel to a framing member. The wallboard fastener comprises a substantially planar base having a single impaling flange secured to it at a midpoint. The impaling flange includes a first leg which extends substantially perpendicularly outwardly from the base and a second leg secured to the first leg and which lies in a plane substantially parallel to but spaced from the base. The second leg of the impaling flange forms a point which is insertable into an edge of the panel, typically a sheet of wallboard.
Inventors
- 👤 George C. Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:19
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0803; E04F13/081; E04F13/0821; E04F13/0823; E04F13/0832; E04F13/0833; E04F13/0841; E04F13/0844
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
156 words
A wallboard fastener adapted for securing a panel to a framing member comprising: a substantially planar base having two spaced ends and two spaced longitudinally extending edges, a single impaling flange secured to a midpoint of said base, said impaling flange comprising a first leg extending perpendicularly outwardly from said base and a second leg extending from the free end of said leg in a plane parallel to but spaced from said base, said second leg forming at least one point which faces one end of said base and which is adapted for insertion into one edge of said panel, a ridge formed along each of said longitudinally extending edges of said base, said ridges being formed by bending said edges outwardly from said base in the same direction as said impaling flange, and said base including a fastener opening positioned between said ridges and between said impaling flange and the other end of said base.
Claim 2
Dependent Claim
156 words
A wallboard fastener adapted for securing a panel to a framing member comprising: a substantially planar base having two spaced ends and two spaced longitudinally extending edges, a single impaling flange secured to a midpoint of said base, said impaling flange comprising a first leg extending perpendicularly outwardly from said base and a second leg extending from the free end of said leg in a plane parallel to but spaced from said base, said second leg forming at least one point which faces one end of said base and which is adapted for insertion into one edge of said panel, a ridge formed along each of said longitudinally extending edges of said base, said ridges being formed by bending said edges outwardly from said base in the same direction as said impaling flange, and said base including a fastener opening positioned between said ridges and between said impaling flange and the other end of said base.
Claim 3
Dependent Claim
24 words
The invention as defined in claim 1 wherein said impaling flange is substantially equidistantly spaced inwardly from said longitudinally extending edges of said base.
Claim 4
Dependent Claim
47 words
The invention as defined in claim 1 and comprising a transverse ridge formed on said base, said transverse ridge being substantially parallel to but spaced inwardly from said one end of said base and protruding outwardly in the same direction from said base as said impaling flange.
Claim 5
Dependent Claim
15 words
The invention as defined in claim 1 wherein said fastener is of a one-piece construction.
Claim 6
Dependent Claim
35 words
The invention as defined in claim 4 wherein said fastener comprises a stamping, said impaling flange being formed from a portion of said base between said impaling flange and said one end of said base.
Claim 7
Dependent Claim
72 words
The invention as defined in claim 5 wherein said base includes a further opening having one end adjacent said impaling flange and its other end spaced inwardly from said one end of said base, said second leg of said impaling flange being positioned over said further opening, and further comprising humps on opposite sides of said further opening which protrude outwardly from said base in the same direction as said impaling flange.
Claim 8
Dependent Claim
27 words
The invention as defined in claim 1 wherein each end of each ridge terminates in a portion which slopes outwardly toward its adjacent end of said base.
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) | 1988-02-12 | 1988-08-13 | 1989-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-12 | 1992-08-13 | 1993-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-12 | 1996-08-13 | 1997-02-12 | $7700.00 | Window Closed / Lapsed |