Back lighted panel
Abstract
Abstract A BACK LIGHTED PANEL HAVING A CELLULAR OR "EGG CRATE" STRUCTURE SUPPORTED ON AND SPACED FROM A FRONT TRANSLUCENT DISPLAY PANEL OR FACE IN A MANNER SUBSTANTIALLY PRECLUDING SHADOWS OR OTHER INTERRUPTIONS IN THE ILLUSTRATIVE MATTER APPLIED TO OR PROVIDED ON THE FRONT DISPLAY FACE. REMOVABLE SUPPORT MEMBERS ARE PROVIDED WHICH MAY BE DISPOSED AT SUBSTANTIALLY ANY DESIRED SPACING IN THE CELLULAR STRUCTURE FOR ENGAGING THE FRONT FACE TO FACILITATE RETAINING THE CELLULAR STRUCTURE IN THE SPACED RELATION WITH RESPECT THERETO AND FOR SUBSTANTIALLY PRECLUDING WARPING OR DISTORTION OF THE FRONT FACE. IN ADDITION, INSERTS ARE PROVIDED FOR THE CELLULAR STRUCTURE WHICH MAY BE UTILIZED TO FACILITATE THE CHANNELING OF LIGHT ONTO THE ILLUSTRATION FACE IN A MORE FACILE MANNER THAN HERETOFORE POSSIBLE. FURTHERMORE, ILLUSTRATION INSERTS ARE PROVIDED WHICH MAY IN AND OF THEMSELVES BE UTILIZED IN COMBINATION WITH THE CELLULAR STRUCTURE AND THE TRANSLUCENT FACE FOR BUILDING OR CONSTRUCTING A LIGHTED ILLUSTRATIVE SYSTEM ON THE SAID ILLUSTRATION FACE.
Inventors
- 👤 John H Koch
Bibliographic Details
Claims Analysis
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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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |