US3536955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight semi-conductor power supply for discharge lamps with means for utilizing inductive high voltage spikes to start the lamps
Assignee: Holotron Corp
•
Filing: 1968-03-26
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Granted: 1970-10-27
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Expires: 1988-03-26
Abstract
No abstract record available.
Inventors
- 👤 Eugene J Sturdevant
- 👤 Le Roy D Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:50
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/338; H02M3/3382; H02M3/3384; H05; H05B; H05B41/00; H05B41/14; H05B41/16; H05B41/18; H05B41/19
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) | 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 |