US3371244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultraviolet lamp transformer
Assignee: ULTRA VIOLET PRODUCTS Inc
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Filing: 1965-02-08
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Granted: 1968-02-27
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Expires: 1985-02-08
Abstract
No abstract record available.
Inventors
- 👤 Steven H Boland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:42
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/26; H05B41/28; H05B41/282; H05B41/2821; H05B41/2822; H01; H01F; H01F38/00; H01F38/08; H01F38/10; Y; Y10; Y10S; Y10S315/00; Y10S315/07
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
IN A CIRCUIT FOR A TUBE LAMP, THE COMBINATION OF: A D.C. TO A.C. INVERTER; A STARTER UNIT CONNECTED ACROSS A TUBE; AND A TRANSFORMER HAVING A MULTISECTION BALANCED PRIMARY WINDING CONNECTED IN CIRCUIT WITH SAID INVERTER AND A SECONDARY WINDING CONNECTED IN SERIES WITH SAID STARTER UNIT, THE TRANSFORMER HAVING A CORE IN THE FORM OF A BAR HAVING A SUBSTANTIALLY UNIFORM CROSSSECTIONAL AREA PROVIDING AN OPEN MAGNETIC FLUX PATH, WITH SAID PRIMARY AND SECONDARY WINDINGS DISPOSED ON SAID CORE AND PROVIDING A SUBSTANTIALLY UNIFORM FLUX DENSITY IN SAID CORE WITHIN SAID WINDINGS.
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |