US2859387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for simultaneously or alternately operating a plurality of xenon high pressure lamps
Assignee: Zeiss Ikon AG
•
Filing: 1955-05-26
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Granted: 1958-11-04
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Expires: 1975-05-26
Abstract
No abstract record available.
Inventors
- 👤 Ulffers Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:24
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/16; H05B41/20; H05B41/23; H05B41/231
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1662114A
Cited
US2062960A
Cited
US2309525A
Cited
US2312050A
Cited
US2707247A
Cited
US2691755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |