US3186115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus
Assignee: Maico Electronics Inc
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Filing: 1961-05-31
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Granted: 1965-06-01
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Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Joachim H Todt
- 👤 Arthur H Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:48
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G09F9/37; G09F9/375
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
A DISPLAY PANEL FOR PRODUCING VISUAL IMAGES FOR AN OBSERVER COMPRISING: A SHEET OF MATERIAL HAVING MAGNETIC PROPERTIES WITH MOVABLE LIGHT REFLECTING ELEMENTS INCLUDING SUPPORTING MEMBERS FORMED THEREWITH; MAGNETIC MEANS DISPOSED ADJACENT SAID PLURALITY OF MOVABLE LIGHT REFLECTING ELEMENTS AND FIXEDLY HOLDING SAID SHEET IN SANDWICHED RELATION FOR CONTROLLING THE POSITION OF SAID LIGHT REFLECTING ELEMENTS; A PLURALITY OF MAGNETIZABLE ELEMENTS LOCATED ADJACENT SAID MAGNETIC MEANS AND SAID MOVABLE LIGHT REFLECTING AND ADAPTED TO BE CONTROLLED BY AN EXTERNAL SIGNAL APPLIED THERETO TO CONTROL THE MOVEMENT OF SAID LIGHT REFLECTING ELEMENTS; A PLURALITY OF IMAGE FORMING CONDUCTORS PHYSICALLY ARRANGED IN THE SHAPED OF THE IMAGE TO BE FORMED FOR CONDUCTING CURRENT IN A FIRST DIRECTION AND INTERCONNECTING CERTAIN OF SAID PLURALITY OF MAGNETIZABLE ELEMENTS IN A PREDETERMINED PATTERN TO PRODUCE AN ADDITIONAL MAGNETIC FIELD TO CAUSE SAID ELEMENTS TO BE MOVED SO THAT LIGHT IS DIRECTED TOWARDS SUCH OBSERVER WHEREBY IMAGES ARE PRODUCED ON SAID PANEL; AND AN IMAGE ERASING CONDUCTOR INTERCONNECTING ALL OF SAID MAGNETIZABLE ELEMENTS FOR CONDUCTING CURRENT IN A DIRECTION OPPOSITE TO SAID FIRST DIRECTION SO THAT LIGHT IS DIRECTED AWAY FROM SUCH OBSERVER WHEREBY IMAGES ARE ERASED FROM SAID PANEL.
Claim 2
Dependent Claim
194 words
A DISPLAY PANEL FOR PRODUCING VISUAL IMAGES FOR AN OBSERVER COMPRISING: A SHEET OF MATERIAL HAVING MAGNETIC PROPERTIES WITH MOVABLE LIGHT REFLECTING ELEMENTS INCLUDING SUPPORTING MEMBERS FORMED THEREWITH; MAGNETIC MEANS DISPOSED ADJACENT SAID PLURALITY OF MOVABLE LIGHT REFLECTING ELEMENTS AND FIXEDLY HOLDING SAID SHEET IN SANDWICHED RELATION FOR CONTROLLING THE POSITION OF SAID LIGHT REFLECTING ELEMENTS; A PLURALITY OF MAGNETIZABLE ELEMENTS LOCATED ADJACENT SAID MAGNETIC MEANS AND SAID MOVABLE LIGHT REFLECTING AND ADAPTED TO BE CONTROLLED BY AN EXTERNAL SIGNAL APPLIED THERETO TO CONTROL THE MOVEMENT OF SAID LIGHT REFLECTING ELEMENTS; A PLURALITY OF IMAGE FORMING CONDUCTORS PHYSICALLY ARRANGED IN THE SHAPED OF THE IMAGE TO BE FORMED FOR CONDUCTING CURRENT IN A FIRST DIRECTION AND INTERCONNECTING CERTAIN OF SAID PLURALITY OF MAGNETIZABLE ELEMENTS IN A PREDETERMINED PATTERN TO PRODUCE AN ADDITIONAL MAGNETIC FIELD TO CAUSE SAID ELEMENTS TO BE MOVED SO THAT LIGHT IS DIRECTED TOWARDS SUCH OBSERVER WHEREBY IMAGES ARE PRODUCED ON SAID PANEL; AND AN IMAGE ERASING CONDUCTOR INTERCONNECTING ALL OF SAID MAGNETIZABLE ELEMENTS FOR CONDUCTING CURRENT IN A DIRECTION OPPOSITE TO SAID FIRST DIRECTION SO THAT LIGHT IS DIRECTED AWAY FROM SUCH OBSERVER WHEREBY IMAGES ARE ERASED FROM SAID PANEL.
References Cited (Backward Citations)
US3025512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |