Patent US2765416A successfully refreshed from Google Patents.
US2765416A
Expired / Lapsed
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Vapor lamps utilizing chemical compounds
Assignee: Westinghouse Electric Corp
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Filing: 1953-09-24
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Granted: 1956-10-02
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Expires: 1973-09-24
Abstract
No abstract record available.
Inventors
- 👤 Norman C Beese
- 👤 Donald E Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:22
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/52; H01J61/12; H01J61/125
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
67 words
A VAPOR ELECTRIC DEVICE FOR THE PRODUCTION OF RADIATION WITHIN A PRESELECTED REGION OF THE SPECTRUM COMPRISING AN ENVELOPE OF QUARTZ, A VAPORIZABLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE IODIDES OF ALUMINUM, BISMUTH, THALLIUM, AND TIN ENCLOSED IN SAID ENVELOPE IN A FILLING OF A NEON-ARGON GAS MIXTURE FREE FROM MERCURY, MEANS FOR PRODUCING AN ELECTRICAL DISCHARGE IN SAID ENVELOPE, AN ENCLOSING HEAT-CONSERVING OUTER EN-
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) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |