US3351798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scandium halide discharge lamp
Assignee: Osram GmbH
•
Filing: 1963-08-15
•
Granted: 1967-11-07
•
Expires: 1983-08-15
Abstract
No abstract record available.
Inventors
- 👤 Bauer Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:58
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/12; H01J61/18; H01J61/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A HIGH PRESSURE ELECTRIC DISCHARGE LAMP COMPRISING AN ENVELOPE OF REFRACTORY LIGHT-TRANSMITTING MATERIAL HAVING A PAIR OF SLENDER SOLID TUNGSTEN ELECTRODES SEALED THEREIN AND CONTAINING A FILLING OF MERCURY PROVIDING A VAPOR PRESSURE IN EXCESS OF 1 ATMOSPHERE WHEN FULLY VAPORIZED IN NORMAL OPERATION, A QUANTITY OF SCANDIUM
Claim 2
Dependent Claim
48 words
A HIGH PRESSURE ELECTRIC DISCHARGE LAMP COMPRISING AN ENVELOPE OF REFRACTORY LIGHT-TRANSMITTING MATERIAL HAVING A PAIR OF SLENDER SOLID TUNGSTEN ELECTRODES SEALED THEREIN AND CONTAINING A FILLING OF MERCURY PROVIDING A VAPOR PRESSURE IN EXCESS OF 1 ATMOSPHERE WHEN FULLY VAPORIZED IN NORMAL OPERATION, A QUANTITY OF SCANDIUM
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |