Patent US2998548A successfully refreshed from Google Patents.
US2998548A
Expired / Lapsed
US
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Voltage generators for flash lamps
Assignee: Individual
•
Filing: 1957-07-16
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Granted: 1961-08-29
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Expires: 1977-07-16
Abstract
No abstract record available.
Inventors
- 👤 Girard Jean Rene Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:50
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1876058A
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US2393316A
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US2722629A
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US2677788A
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US2624831A
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US2589720A
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US2622229A
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US2668485A
Cited
US2721959A
Cited
US2794152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |