US4875654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic picture retainer
Assignee: YVON CHANDONNET
•
Filing: 1987-12-29
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Granted: 1989-10-24
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Expires: 2007-12-29
Abstract
Abstract The present invention relates to an attaching device for mounting a picture on a wall or on a similar supporting structure. The attaching device comprises a pair of magnetically attracting members, one of the members being mounted on the wall and the other of the members being mounted on the back of the picture. One of the members comprises a projecting pin adapted to fit into a seat formed on the other member for preventing the members from sliding relative to each other when they are in engagment.
Inventors
- 👤 Michel Chandonnet
- 👤 Luc Chandonnet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:30
CPC Classifications
F; F16; F16B; F16B3/00; A; A47; A47G; A47G1/00; A47G1/16; A47G1/17; F16B2200/00; F16B2200/83; F16B5/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
106 words
A device for mounting a picture on a supporting structure, said device comprising: first and second magnetically attracting members, said first member being adapted to be mounted to said supporting structure and said second member being adapted to be mounted to said picture, wherein said first member includes: a back-plate adapted to be mounted to said supporting structure; a permanent magnet having an annular shape; a centrally located pin extending slightly beyond the frontal face of said permanent magnet; and said second member having a seat adapted to receive said pin when said members are engaged for preventing said members from sliding relative to each other.
Claim 2
Independent Claim
106 words
A device for mounting a picture on a supporting structure, said device comprising: first and second magnetically attracting members, said first member being adapted to be mounted to said supporting structure and said second member being adapted to be mounted to said picture, wherein said first member includes: a back-plate adapted to be mounted to said supporting structure; a permanent magnet having an annular shape; a centrally located pin extending slightly beyond the frontal face of said permanent magnet; and said second member having a seat adapted to receive said pin when said members are engaged for preventing said members from sliding relative to each other.
Claim 3
Independent Claim
108 words
A device for mounting a picture on a supporting structure, said device comprising: first and second magnetically attracting members, said first member being adapted to be mounted to said supporting structure and said second member being adapted to be mounted to said picture, wherein said first member includes: a back-plate adapted to be mounted to said supporting structure; a permanent magnet having an annular shape; a centrally located pin extending slightly beyond the frontal face of said permanent magnet; and said second member having a centrally located opening adapted to receive said pin when said members are engaged for preventing said members from sliding relative to each other.
Claim 4
Independent Claim
108 words
A device for mounting a picture on a supporting structure, said device comprising: first and second magnetically attracting members, said first member being adapted to be mounted to said supporting structure and said second member being adapted to be mounted to said picture, wherein said first member includes: a back-plate adapted to be mounted to said supporting structure; a permanent magnet having an annular shape; a centrally located pin extending slightly beyond the frontal face of said permanent magnet; and said second member having a centrally located opening adapted to receive said pin when said members are engaged for preventing said members from sliding relative to each other.
Claim 5
Independent Claim
118 words
A device for mounting a picture on a supporting structure, said device comprising: first and second magnetically attracting members, said first member being adapted to be mounted to said supporting structure and said second member being adapted to be mounted to said picture, wherein said first member includes: a back-plate adapted to be mounted to said supporting structure; a permanent magnet having an annular shape; a centrally located pin extending slightly beyond the frontal fact of said permanent magnet a distance corresponding to the thickness of said second member; and said second member having a centrally located opening adapted to receive said pin when said members are engaged for preventing said members from sliding relative to each other.
Claim 6
Independent Claim
118 words
A device for mounting a picture on a supporting structure, said device comprising: first and second magnetically attracting members, said first member being adapted to be mounted to said supporting structure and said second member being adapted to be mounted to said picture, wherein said first member includes: a back-plate adapted to be mounted to said supporting structure; a permanent magnet having an annular shape; a centrally located pin extending slightly beyond the frontal fact of said permanent magnet a distance corresponding to the thickness of said second member; and said second member having a centrally located opening adapted to receive said pin when said members are engaged for preventing said members from sliding relative to each other.
Claim 7
Independent Claim
138 words
A device for mounting a picture on a supporting structure, said device comprising: first and second magnetically attracting members, said first member being adapted to be mounted to said supporting structure and said second member being adapted to be mounted to aid picture, wherein said first member includes: a back-plate adapted to be mounted to said supporting structure; a permanent magnet having an annular shape; a centrally located pin extending slightly beyond the frontal face of said permanent magnet; and said second member having a centrally located opening adapted to receive said pin when said members are engaged for preventing said members from sliding relative to each other, wherein said second member includes a locating means in the form of a depression centered on said opening for guiding said pin toward said opening during engagement of said members.
Claim 8
Independent Claim
138 words
A device for mounting a picture on a supporting structure, said device comprising: first and second magnetically attracting members, said first member being adapted to be mounted to said supporting structure and said second member being adapted to be mounted to aid picture, wherein said first member includes: a back-plate adapted to be mounted to said supporting structure; a permanent magnet having an annular shape; a centrally located pin extending slightly beyond the frontal face of said permanent magnet; and said second member having a centrally located opening adapted to receive said pin when said members are engaged for preventing said members from sliding relative to each other, wherein said second member includes a locating means in the form of a depression centered on said opening for guiding said pin toward said opening during engagement of said members.
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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) | 1992-10-23 | 1993-04-24 | 1993-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-23 | 1997-04-24 | 1997-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-23 | 2001-04-24 | 2001-10-24 | $7700.00 | Window Closed / Lapsed |