US3474290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition circuit for an arc-discharge lamp and devices therefor
Assignee: General Electric Co
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Filing: 1966-01-26
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Granted: 1969-10-21
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Expires: 1986-01-26
Abstract
No abstract record available.
Inventors
- 👤 David L Swain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:20
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/36; H05B41/38; H05B41/40; H01; H01H; H01H51/00; H01H51/28; H01H51/287; H05B41/02; H05B41/04; H05B41/042; H05B41/30; H05B41/34
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) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |