Patent US3670067A successfully refreshed from Google Patents.
US3670067A
Expired / Lapsed
US
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Method of making illuminated panel
Assignee: Scott Technologies Inc
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Filing: 1970-02-13
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Granted: 1972-06-13
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Expires: 1990-02-13
Abstract
Abstract An electroluminescent panel having a shell formed of lighttransmitting material and having an indicia bearing face to be illuminated. An electroluminescent member is positioned adjacent the ace within the shell which is filled with potting compound to a level encapsulating the member. The shell can be formed with an open-ended wall extending inwardly from the indicia bearing face to provide a socket for a control member.
Inventors
- 👤 Richard W Coolbaugh
- 👤 Floyd W Engels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:14
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/02; H05B33/04; B; B60; B60Q; B60Q3/00; B60Q3/10; B60Q3/14; H01; H01H; H01H9/00; H01H9/18; H01H2009/186
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
108 words
The method of making an illuminated panel having a socket opening therein which comprises forming a panel face of lighttransmitting electrically insulating material having a well projecting from one side thereof, placing an electroluminescent member adjacent said one side of said face with the inner end of said well extending beyond said member, encapsulating the exposed portions of said member with an electrically insulating potting compound which extends above said member but below said well, and severing the inner end of said well closely adjacent the outer surface of said potting compound to provide an insulated socket substantially co-extensive in length with the thickness of said potting compound.
Claim 2
Independent Claim
108 words
The method of making an illuminated panel having a socket opening therein which comprises forming a panel face of lighttransmitting electrically insulating material having a well projecting from one side thereof, placing an electroluminescent member adjacent said one side of said face with the inner end of said well extending beyond said member, encapsulating the exposed portions of said member with an electrically insulating potting compound which extends above said member but below said well, and severing the inner end of said well closely adjacent the outer surface of said potting compound to provide an insulated socket substantially co-extensive in length with the thickness of said potting compound.
Claim 3
Dependent Claim
40 words
The method of claim 1 wherein said electroluminescent member is magnetic, and wherein said member is held in position adjacent one side of said face by magnetic means on the opposite side thereof while encapsulating said member with potting compound.
Claim 4
Dependent Claim
15 words
The method of claim 1, together with the step of providing indicia on said face.
Claim 5
Dependent Claim
18 words
The method of cLaim 3, wherein said indicia is provided by rendering said face opaque around said indicia.
References Cited (Backward Citations)
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US2787652A
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US2958762A
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US3133221A
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US3461551A
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US3395209A
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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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |