US3093769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed-light electric lamp
Assignee: Osram GmbH
•
Filing: 1960-05-09
•
Granted: 1963-06-11
•
Expires: 1980-05-09
Abstract
No abstract record available.
Inventors
- 👤 Kuhl Bernard
- 👤 Krense Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:53
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/96
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A MIXED-LIGHT ELECTRIC LAMP COMPRISING AN OUTER ENVELOPE, A FIRST INCANDESCENT FILAMENT AND A HIGH-PRESSURE DISCHARGE LAMP MOUNTED WITHIN SAID OUTER ENVELOPE, SAID DISCHARGE LAMP COMPRISING A TRANSMISSIVE BULB, TWO MAIN ELECTRODES WITHIN SAID BULB AND A GASEOUS ATMOSPHERE HAVING A FILLING PRESSURE OF LESS THAN 2 ATMOSPHERES, A SECOND INCANDESCENT FILAMENT MOUNTED WITHIN BUT OUT OF THE AXIS OF SAID BULB AND PARALLEL TO THE ARC PATH, SAID SECOND INCANDESCENT FILAMENT PROPORTIONED FOR AN ELECTRIC CURRENT OF 2 TO 30% OF THE LAMP CURRENT, AND SERIES RESISTORS WITHIN SAID OUTER ENVELOPE CONNECTED TO THE END POR-
Claim 2
Dependent Claim
97 words
A MIXED-LIGHT ELECTRIC LAMP COMPRISING AN OUTER ENVELOPE, A FIRST INCANDESCENT FILAMENT AND A HIGH-PRESSURE DISCHARGE LAMP MOUNTED WITHIN SAID OUTER ENVELOPE, SAID DISCHARGE LAMP COMPRISING A TRANSMISSIVE BULB, TWO MAIN ELECTRODES WITHIN SAID BULB AND A GASEOUS ATMOSPHERE HAVING A FILLING PRESSURE OF LESS THAN 2 ATMOSPHERES, A SECOND INCANDESCENT FILAMENT MOUNTED WITHIN BUT OUT OF THE AXIS OF SAID BULB AND PARALLEL TO THE ARC PATH, SAID SECOND INCANDESCENT FILAMENT PROPORTIONED FOR AN ELECTRIC CURRENT OF 2 TO 30% OF THE LAMP CURRENT, AND SERIES RESISTORS WITHIN SAID OUTER ENVELOPE CONNECTED TO THE END POR-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |