US3789470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacture of display device utilizing gas discharge
Assignee: Fujitsu Ltd
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Filing: 1971-06-25
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Granted: 1974-02-05
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Expires: 1991-06-25
Abstract
Abstract Each of a pair of spaced glass insulating substrate components has a plurality of mutually isolated conductive electrode layers on a surface thereof. Each surface faces the other and each plurality of electrode layers face the other. A layer of insulating material is applied to cover the electrode layers on each surface. A plurality of spaces are etched in a second layer of insulating material. The second layer is positioned between and joins the first layers of insulating material with the spaces between such layers sealed air tight, so that ionizable gas fills the spaces.
Inventors
- 👤 N Nakayama
- 👤 K Owaki
- 👤 K Kiyozumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:27
CPC Classifications
H; H01; H01J; H01J11/00
Claims Analysis
Total Claims: 0
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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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |