US3384798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure saturation vapor sodium lamp containing mercury
Assignee: General Electric Co
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Filing: 1966-04-26
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Granted: 1968-05-21
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Expires: 1986-04-26
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:32
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/12; H01J61/18; H01J61/22; H01J61/82; H01J61/825
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A HIGH INTENSITY SODIUM VAPOR DISCHARGE LAMP COMPRISING A TUBULAR ELONGATED ENVELOPE OF MATERIAL RESISTANT TO THE ATTACK OF SODIUM VAPOR AT HIGH TEMPERATURES, A PAIR OF ELECTRODES SEALED INTO OPPOSITE ENDS, AN IONIZABLE MEDIUM WITHIN SIAD ENVELOPE COMPRISING AN INERT STARTING GAS AND A QUANTITY OF A DODIUM-MERCURY AMALGAM IN EXCESS OF THAT VAPORIZED IN OPERATION OF SAID LAMP, THE ATOMIC FRACTION OF SODIUM IN THE EXCESS AMALGAM BEING
Claim 2
Dependent Claim
70 words
A HIGH INTENSITY SODIUM VAPOR DISCHARGE LAMP COMPRISING A TUBULAR ELONGATED ENVELOPE OF MATERIAL RESISTANT TO THE ATTACK OF SODIUM VAPOR AT HIGH TEMPERATURES, A PAIR OF ELECTRODES SEALED INTO OPPOSITE ENDS, AN IONIZABLE MEDIUM WITHIN SIAD ENVELOPE COMPRISING AN INERT STARTING GAS AND A QUANTITY OF A DODIUM-MERCURY AMALGAM IN EXCESS OF THAT VAPORIZED IN OPERATION OF SAID LAMP, THE ATOMIC FRACTION OF SODIUM IN THE EXCESS AMALGAM BEING
References Cited (Backward Citations)
US2161824A
Cited
US3248590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |