US3443154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control circuit for flashing an arc discharge lamp
Assignee: US Philips Corp
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Filing: 1965-09-20
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Granted: 1969-05-06
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Expires: 1985-09-20
Abstract
No abstract record available.
Inventors
- 👤 Piet Hoekstra
- 👤 Jan Bernardus Reint Teisman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:35
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/34; G; G03; G03B; G03B21/00; G03B21/14; G03B21/20; G03B21/2006; G03B21/2026; G03B21/2053; H05B41/16; H05B41/20; H05B41/23; H05B41/232
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A CIRCUIT FOR FLASHING AN ARC DISCHARGE LAMP COMPRISING, A SOURCE OF ALTERNATING VOLTAGE OF A FIRST GIVEN FREQUENCY, FIRST AND SECOND CAPACITORS, FIRST AND SECOND UNIDIRECTIONAL CONDUCTING GATING MEANS, MEANS INDIVIDUALLY INTERCONNECTING SAID VOLTAGE SOURCE WITH SAID FIRST AND SECOND CAPACITORS BY MEANS OF SAID FIRST AND SECOND GATING MEANS, RESPECTIVELY, FIRST MEANS FOR SELECTIVELY OPENING EACH OF SAID FIRST AND SECOND GATING MEANS AT SAID FIRST FREQUENCY SO AS TO CHARGE SAID CAPACITORS DURING ALTERNATE HALF CYCLES OF SAID ALTERNATING VOLTAGE, THIRD
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) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |