Patent US2492159A successfully refreshed from Google Patents.
Patent US3843427A successfully refreshed from Google Patents.
US3843427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a gas-discharge display panel
Assignee: US Philips Corp
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Filing: 1971-03-01
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Granted: 1974-10-22
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Expires: 1991-03-01
Abstract
Abstract 1. IN THE METHOD OF MANUFACTURING A GAS-DISCHARGE DISPLAY PANEL COMPRISING AT LEAST ONE BOTTOM PLATE AND ONE TOP PLATE OF INSULATING, TRANSPARENT MATERIAL, THE BOTTOM AND TOP PLATES BEING PROVIDED WITH STRIP-SHAPED RELATIVELY INSULATED CONDUCTORS, PARTS OF THE SURFACES OF WHICH ARE IN CONTACT WITH A GAS ATMOSPHER IN CAVITIES BETWEEN THE CONDUCTORS, THE STEPS OF EMBEDDING A COMBSHAPED CONDUCTOR IN AN INSULATING PLATE WITH THE TINES OF THE COMB-SHAPED CONDUCTOR EXTENDING UP TO THE SURFACE OF THE PLATE, AND THEREAFTER CHEMICALLY ETCHING THE TINES TO FORM CAVITIES IN THE INSULATING PLATE.
Inventors
- 👤 J Hornman
- 👤 De Laar W Van
- 👤 Esdonk J Van
- 👤 J Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:31
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/492; H01J17/497
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN THE METHOD OF MANUFACTURING A GAS-DISCHARGE DISPLAY PANEL COMPRISING AT LEAST ONE BOTTOM PLATE AND ONE TOP PLATE OF INSULATING, TRANSPARENT MATERIAL, THE BOTTOM AND TOP PLATES BEING PROVIDED WITH STRIP-SHAPED RELATIVELY INSULATED CONDUCTORS, PARTS OF THE SURFACES OF WHICH ARE IN CONTACT WITH A GAS ATMOSPHER IN CAVITIES BETWEEN THE CONDUCTORS, THE STEPS OF EMBEDDING A COMBSHAPED CONDUCTOR IN AN INSULATING PLATE WITH THE TINES OF THE COMB-SHAPED CONDUCTOR EXTENDING UP TO THE SURFACE OF THE PLATE, AND THEREAFTER CHEMICALLY ETCHING THE TINES TO FORM CAVITIES IN THE INSULATING PLATE.
Claim 2
Dependent Claim
92 words
IN THE METHOD OF MANUFACTURING A GAS-DISCHARGE DISPLAY PANEL COMPRISING AT LEAST ONE BOTTOM PLATE AND ONE TOP PLATE OF INSULATING, TRANSPARENT MATERIAL, THE BOTTOM AND TOP PLATES BEING PROVIDED WITH STRIP-SHAPED RELATIVELY INSULATED CONDUCTORS, PARTS OF THE SURFACES OF WHICH ARE IN CONTACT WITH A GAS ATMOSPHER IN CAVITIES BETWEEN THE CONDUCTORS, THE STEPS OF EMBEDDING A COMBSHAPED CONDUCTOR IN AN INSULATING PLATE WITH THE TINES OF THE COMB-SHAPED CONDUCTOR EXTENDING UP TO THE SURFACE OF THE PLATE, AND THEREAFTER CHEMICALLY ETCHING THE TINES TO FORM CAVITIES IN THE INSULATING PLATE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |