US3298124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display devices
Assignee: Eaton Paper Corp
•
Filing: 1966-04-20
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Granted: 1967-01-17
•
Expires: 1986-04-20
Abstract
No abstract record available.
Inventors
- 👤 Fred L Jahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:51
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/06; Y; Y10; Y10S; Y10S428/00; Y10S428/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A DISPLAY DEVICE COMPRISING A RECTANGULAR BACKING MEMBER OF GREATER LENGTH THAN WIDTH, AND INCLUDING AN IRON PLATE, A FRAME ABOUT THE PERIMETER OF SAID BACKING MEMBER EXTENDING FORWARDLY BEYOND THE FRONT FACE OF SAID BACKING MEMBER AND A PLURALITY OF ELONGATED MAGNETIC MEMBERS OF SUBSTANTIALLY EQUAL LENGTH, EACH REMOVABLY MOUNTED ON AND CONTACTING THE FRONT SIDE OF SAID BACKING MEMBER THROUGHOUT ITS LENGTH AND HELD INSIDE OF SAID FRAME AND AGAINST SAID BACKING MEMBER BY MAGNETIC ATTRACTION THE LENGTH OF EACH MAGNETIC MEMBER BEING SUBSTANTIALLY EQUAL TO THE WIDTH OF SAID BACKING MEMBER AND THE LENGTH OF SAID BACKING MEMBER BEING SUCH THAT SAID MAGNETIC MEMBERS CAN BE ARRANGED ON SAID BACKING MEMBER TO DIVIDE THE AREA OF SAID BACKING MEMBER, INSIDE SAID FRAME, INTO A PLURALITY OF SUBSTANTIALLY EQUAL SMALLER AREAS, WITH AT LEAST ONE OF SAID MAGNETIC MEMBERS BEING ARRANGED AT RIGHT ANGLES TO ANOTHER MAGNETIC MEMBER, WITH NONE CROSSING EACH OTHER.
Claim 2
Dependent Claim
155 words
A DISPLAY DEVICE COMPRISING A RECTANGULAR BACKING MEMBER OF GREATER LENGTH THAN WIDTH, AND INCLUDING AN IRON PLATE, A FRAME ABOUT THE PERIMETER OF SAID BACKING MEMBER EXTENDING FORWARDLY BEYOND THE FRONT FACE OF SAID BACKING MEMBER AND A PLURALITY OF ELONGATED MAGNETIC MEMBERS OF SUBSTANTIALLY EQUAL LENGTH, EACH REMOVABLY MOUNTED ON AND CONTACTING THE FRONT SIDE OF SAID BACKING MEMBER THROUGHOUT ITS LENGTH AND HELD INSIDE OF SAID FRAME AND AGAINST SAID BACKING MEMBER BY MAGNETIC ATTRACTION THE LENGTH OF EACH MAGNETIC MEMBER BEING SUBSTANTIALLY EQUAL TO THE WIDTH OF SAID BACKING MEMBER AND THE LENGTH OF SAID BACKING MEMBER BEING SUCH THAT SAID MAGNETIC MEMBERS CAN BE ARRANGED ON SAID BACKING MEMBER TO DIVIDE THE AREA OF SAID BACKING MEMBER, INSIDE SAID FRAME, INTO A PLURALITY OF SUBSTANTIALLY EQUAL SMALLER AREAS, WITH AT LEAST ONE OF SAID MAGNETIC MEMBERS BEING ARRANGED AT RIGHT ANGLES TO ANOTHER MAGNETIC MEMBER, WITH NONE CROSSING EACH OTHER.
References Cited (Backward Citations)
US2177905A
Cited
GB552327A
Cited
US2593195A
Cited
FR1029830A
Cited
US2864275A
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US3093919A
Cited
US3156056A
Cited
US3224126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |