Patent US2035832A successfully refreshed from Google Patents.
Patent US3334261A successfully refreshed from Google Patents.
US3334261A
Expired / Lapsed
US
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High pressure discharge device having a fill including iodine mercury and at least one rare earth metal
Assignee: GTE Sylvania Inc
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Filing: 1965-10-24
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Granted: 1967-08-01
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Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Keith H Butler
- 👤 Koury Frederick
- 👤 John F Waymouth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:04
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/12; H01J61/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A HIGH PRESSURE DISCHARGE DEVICE COMPRISING: AN ARC TUBE HAVING ELECTRODES SEALED AT EITHER END THEREOF AND A VAPORIZABLE FILL OF A QUANTITY OF IODINE, MERCURY AND AT LEAST ONE RARE EARTH METAL SELECTED FROM THE GROUP CONSISTING OF YTTRIUM, LANTHANUM, CERIUM, NEODYMIUM, LUTETIUM, HOLMIUM, THULIUM, PRASEODYMIUM, GADOLINIUM, TERBIUM, DYSPROSIUM AND ERBIUM, SAID IODINE AND MERCURY RESPECTIVELY BEING PRESENT THEREIN AT AN ATOMIC RATIO OF 0.10 TO 0.85 AND SAID MERCURY BEING PRESENT IN SUFFICIENT QUANTITIES TO BE COMPLETELY VAPORIZED AT PREDETERMINED OPERATING TEMPERATURES OF SAID ARE TUBE AND TO FORM A RESTRICTED ARC THEREIN, SAID RARE EARTH METALS BEING PRESENT IN QUANTITIES OF 0.046X10-5 GRAM ATOMS PER CENTIMETER OF ARC LENGTH.
Claim 2
Dependent Claim
112 words
A HIGH PRESSURE DISCHARGE DEVICE COMPRISING: AN ARC TUBE HAVING ELECTRODES SEALED AT EITHER END THEREOF AND A VAPORIZABLE FILL OF A QUANTITY OF IODINE, MERCURY AND AT LEAST ONE RARE EARTH METAL SELECTED FROM THE GROUP CONSISTING OF YTTRIUM, LANTHANUM, CERIUM, NEODYMIUM, LUTETIUM, HOLMIUM, THULIUM, PRASEODYMIUM, GADOLINIUM, TERBIUM, DYSPROSIUM AND ERBIUM, SAID IODINE AND MERCURY RESPECTIVELY BEING PRESENT THEREIN AT AN ATOMIC RATIO OF 0.10 TO 0.85 AND SAID MERCURY BEING PRESENT IN SUFFICIENT QUANTITIES TO BE COMPLETELY VAPORIZED AT PREDETERMINED OPERATING TEMPERATURES OF SAID ARE TUBE AND TO FORM A RESTRICTED ARC THEREIN, SAID RARE EARTH METALS BEING PRESENT IN QUANTITIES OF 0.046X10-5 GRAM ATOMS PER CENTIMETER OF ARC LENGTH.
References Cited (Backward Citations)
US3234421A
Cited
US3153169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |