US3220903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating edge-lighted panels
Assignee: California Plasteck Inc
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Filing: 1962-06-11
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Granted: 1965-11-30
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Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Leslie E Madansky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:20
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0065; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/109
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
A METHOD OF FABRICATING A PANEL OF THE CHARACTER DESCRIBED WITH A DESIGN THEREON FOR ILLUMINATION BY LAMP MEANS FROM THE INTERIOR OF THE PANEL, INCLUDING THE STEPS OF: APPLYING CONDUCTOR ELEMENTS TO A FACE OF A RELATIVELY THICK PLATE OF LIGHT-TRANSMITTING THERMOPLASTIC MATERIAL TO FORM A CIRCUIT FOR THE LAMP MEANS; APPLYING HEAT AND PRESSURE TO THE FACE OF THE PLATE TO SOFTEN THE MATERIAL THEREOF AND TO EMBED THE CONDUCTOR ELEMENTS THEREIN SUBSTANTIALLY FLUSH WITH THE SURFACE THEREOF; APPLYING A LAYER OF TRANSLUCENT PLASTIC MATERIAL TO THE FACE OF THE PLATE AND THE EMBEDDED CONDUCTOR ELEMENTS; APPLYING A LAYER OF PARTING AGENT TO THE TRANSLUCENT
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |