US3353050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent filament-indicator device, particularly suitable for digital and/or alphabetical dials
Assignee: Individual
•
Filing: 1965-06-16
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Granted: 1967-11-14
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Expires: 1985-06-16
Abstract
No abstract record available.
Inventors
- 👤 Panerai Maria
- 👤 Panerai Giuseppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:22
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/04; G09G3/06; G09G3/12; G09F; G09F9/00; G09F9/46; H; H05; H05B; H05B33/00; H05B33/12; H05B33/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN INDICATOR DISPLAY DEVICE COMPRISING A PLURALITY OF COAXIAL CLOSELY SPACED TRANSPARENT WAFER ELEMENTS WITH EACH WATER ELEMENT INCLUDING A THIN ELECTROLUMINESCENT FILAMENT SHAPED IN THE FORM OF A DISCRETE SYMBOL, AND MOUNTED ON A THIN LAYER OF TRANSPARENT CONDUCTIVE MATERIAL SUPPORTING SAID FILAMENT, A PLURALITY OF SELECTIVELY OPERABLE CONDUCTORS RESPECTIVELY CONNECTED TO SAID FILAMENTS AND A COMMON CONDUCTOR CONNECTED TO EACH LAYER OF CONDUCTIVE MATERIAL SO THAT ACTUATION OF A SELECTED ONE OF
Claim 2
Dependent Claim
74 words
AN INDICATOR DISPLAY DEVICE COMPRISING A PLURALITY OF COAXIAL CLOSELY SPACED TRANSPARENT WAFER ELEMENTS WITH EACH WATER ELEMENT INCLUDING A THIN ELECTROLUMINESCENT FILAMENT SHAPED IN THE FORM OF A DISCRETE SYMBOL, AND MOUNTED ON A THIN LAYER OF TRANSPARENT CONDUCTIVE MATERIAL SUPPORTING SAID FILAMENT, A PLURALITY OF SELECTIVELY OPERABLE CONDUCTORS RESPECTIVELY CONNECTED TO SAID FILAMENTS AND A COMMON CONDUCTOR CONNECTED TO EACH LAYER OF CONDUCTIVE MATERIAL SO THAT ACTUATION OF A SELECTED ONE OF
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |