US3089054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atomic spectral lamps
Assignee: Commonwealth Scientific and Industrial Research Organisation
•
Filing: 1960-10-17
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Granted: 1963-05-07
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Expires: 1980-10-17
Abstract
No abstract record available.
Inventors
- 👤 Walsh Alan
- 👤 Jones William George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:13
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/04; H01J61/06; H01J61/09; G; G01; G01J; G01J3/00; G01J3/02; G01J3/10; H01J61/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A DISCHARGE TUBE, SAID ATOMIC SPECTRAL LIGHT SOURCE BEING CONFINED WHOLLY TO THE HOLLOW INTERIOR OF THE RESPECTIVE ELECTRODE, COMPRISING A SEALED ENVELOPE, AT LEAST TWO HOLLOW CYLINDRICAL ELECTRODES MOUNTED SIDE BY SIDE AT ONE END OF THE ENVELOPE WITH THEIR AXES PARALLEL, AND A TRANSPARENT WINDOW AT THE OTHER END OF THE ENVELOPE IN AXIAL ALIGNMENT WITH THE AXES OF THE SAID ELECTRODE, EACH OF THE ELECTRODES INCLUDING A DIFFERENT ELEMENT AND BEING CAPABLE OF PROVIDING AN ATOMIC SPECTRAL LIGHT SOURCE CHARACTERISTIC OF THAT ELEMENT FOR PORVIDING A SPECTRAL LINE OF AT LEAST TWO SOLID ELEMENTS, WHEREBY LIGHT FROM ANY ONE OF THE ELECTRODES CAN BE VIEWED THROUGH THE WINDOW WITHOUT OBSTRUCTION BY ANY OTHER OF THE ELECTRODES.
Claim 2
Dependent Claim
119 words
A DISCHARGE TUBE, SAID ATOMIC SPECTRAL LIGHT SOURCE BEING CONFINED WHOLLY TO THE HOLLOW INTERIOR OF THE RESPECTIVE ELECTRODE, COMPRISING A SEALED ENVELOPE, AT LEAST TWO HOLLOW CYLINDRICAL ELECTRODES MOUNTED SIDE BY SIDE AT ONE END OF THE ENVELOPE WITH THEIR AXES PARALLEL, AND A TRANSPARENT WINDOW AT THE OTHER END OF THE ENVELOPE IN AXIAL ALIGNMENT WITH THE AXES OF THE SAID ELECTRODE, EACH OF THE ELECTRODES INCLUDING A DIFFERENT ELEMENT AND BEING CAPABLE OF PROVIDING AN ATOMIC SPECTRAL LIGHT SOURCE CHARACTERISTIC OF THAT ELEMENT FOR PORVIDING A SPECTRAL LINE OF AT LEAST TWO SOLID ELEMENTS, WHEREBY LIGHT FROM ANY ONE OF THE ELECTRODES CAN BE VIEWED THROUGH THE WINDOW WITHOUT OBSTRUCTION BY ANY OTHER OF THE ELECTRODES.
References Cited (Backward Citations)
US1816690A
Cited
US2607901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |