Patent US3536945A successfully refreshed from Google Patents.
US3536945A
Expired / Lapsed
US
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Luminescent gas tube including a gas permeated phosphor coating
Assignee: Microdot Inc
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Filing: 1966-02-14
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Granted: 1970-10-27
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Expires: 1986-02-14
Abstract
No abstract record available.
Inventors
- 👤 Clifford D Skirvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:28
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/70; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1949069A
Cited
US2182778A
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US2538062A
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US2622221A
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US2525624A
Cited
US2790936A
Cited
US3005930A
Cited
US2923856A
Cited
US3294468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |