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Patent US4222544A successfully refreshed from Google Patents.
US4222544A
Expired / Lapsed
US
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Picture rail apparatus
Assignee: Individual
•
Filing: 1977-08-10
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Granted: 1980-09-16
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Expires: 1997-08-10
Abstract
Abstract Known picture rail apparatus comprises a rail member to be mounted horizontally on the wall, the rail member being formed with a longitudinally-extending slot, and a support member on which a picture or other article can be supported. The support member is provided with a tongue permitting it to be slidingly mounted on the rail member with the tongue slidingly engaged in the slot. In this invention, an inter-engaging surface of one of the tongue and the slot is provided with a longitudinally-extending shoulder which may be in the form of a rib serving to resist withdrawal of the tongue laterally from the slot.
Inventors
- 👤 Kenneth Crowder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:44
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/16; A47G1/1686; G; G09; G09F; G09F1/00; G09F1/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
171 words
In combination, a picture rail member with a horizontally continuous opening in its front wall, a rearwardly elongated slot defined by top, bottom and back walls rearwardly of the opening, a horizontally continuous recess in the bottom wall of the slot adjacent its back wall, said recess extending forwardly and downwardly in undercut relationship beneath the back edge of said bottom wall, and a hook member comprising a rearwardly elongated tongue engaging slidably on said bottom wall and having its top surface spaced from said top wall, a front plate portion having hook means thereon and a rear face spaced from the front wall of the rail member, and a dovetail portion adjacent the rear edge of said tongue portion with a projection forwardly and downwardly in snug engagement within said undercut recess, the forward extent of said projection being less than the spacing between the rail member and the plate portion and the downward extent thereof being less than the spacing between the tongue portion and the slot top wall.
Claim 2
Dependent Claim
171 words
In combination, a picture rail member with a horizontally continuous opening in its front wall, a rearwardly elongated slot defined by top, bottom and back walls rearwardly of the opening, a horizontally continuous recess in the bottom wall of the slot adjacent its back wall, said recess extending forwardly and downwardly in undercut relationship beneath the back edge of said bottom wall, and a hook member comprising a rearwardly elongated tongue engaging slidably on said bottom wall and having its top surface spaced from said top wall, a front plate portion having hook means thereon and a rear face spaced from the front wall of the rail member, and a dovetail portion adjacent the rear edge of said tongue portion with a projection forwardly and downwardly in snug engagement within said undercut recess, the forward extent of said projection being less than the spacing between the rail member and the plate portion and the downward extent thereof being less than the spacing between the tongue portion and the slot top wall.
Claim 3
Dependent Claim
15 words
The combination of claim 1 in which the slot extends downwardly rearwardly from the opening.
Claim 4
Dependent Claim
15 words
The combination of claim 1 wherein the plate portion extends above and below the opening.
Claim 5
Dependent Claim
18 words
The combination of claim 1 wherein the front edges of said recess and said projection comprise inclined planes.
Claim 6
Dependent Claim
21 words
The combination of claim 1 wherein the rail member is a metal extrusion and the hook member is a plastics molding.
References Cited (Backward Citations)
US28174A
Cited
US394144A
Cited
US1019151A
Cited
US1060708A
Cited
US1800387A
Cited
US1850021A
Cited
GB427359A
Cited
US3268195A
Cited
US4008872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |