US3109960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeless discharge lamp apparatus
Assignee: Varian Medical Systems Inc
•
Filing: 1960-09-16
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Granted: 1963-11-05
•
Expires: 1980-09-16
Abstract
No abstract record available.
Inventors
- 👤 William E Bell
- 👤 Arnold L Bloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:16
CPC Classifications
H; H01; H01J; H01J65/00; H01J65/04; H01J65/042; H01J65/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
AN ELECTRODELESS DISCHARGE LAMP COMPRISING A DISCHARGE BULB MADE FROM A MATERIAL EXHIBITING A HIGH FREQUENCY ELECTRICAL LOSS, AND MEANS ADJACENT SAID BULB FOR EXCITING A HIGH FREQUENCY FIELD WHICH INITIATES A DISCHARGE THEREIN AND ALSO HEATS THE WALLS OF SAID BULB SO THAT THE INTENSITY OF SAID DISCHARGE IS CONCENTRATED WITHIN A NARROW SPECTRAL BAND.
Claim 2
Dependent Claim
56 words
AN ELECTRODELESS DISCHARGE LAMP COMPRISING A DISCHARGE BULB MADE FROM A MATERIAL EXHIBITING A HIGH FREQUENCY ELECTRICAL LOSS, AND MEANS ADJACENT SAID BULB FOR EXCITING A HIGH FREQUENCY FIELD WHICH INITIATES A DISCHARGE THEREIN AND ALSO HEATS THE WALLS OF SAID BULB SO THAT THE INTENSITY OF SAID DISCHARGE IS CONCENTRATED WITHIN A NARROW SPECTRAL BAND.
References Cited (Backward Citations)
US2118452A
Cited
US2974243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |