US3206632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lamp with a dip-coated fired layer
Assignee: Westinghouse Electric Corp
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Filing: 1961-04-21
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Granted: 1965-09-14
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Expires: 1981-04-21
Abstract
No abstract record available.
Inventors
- 👤 Rokosz Ferdinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 02:57
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/38; H01J61/40; H01J9/00; H01J9/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
IN COMBINATION WITH A HIGH-PRESSURE MERCURY VAPOR DISCHARGE LAMP HAVING AN ARC TUBE AND AN ENCLOSING ENVELOPE OF VITREOUS LIGHT-TRANSMITTING MATERIAL, MEANS FOR SELECTIVELY ABSORBING VISIBLE RADIATIONS GENERATED BY SAID ARC TUBE AND THEREBY MODIFYING THE COLOR OF THE LIGHT NORMALLY PRODUCED BY SAID LAMP COMPRISING A DIP-COATED FIRED LAYER OF COLLOIDAL METAL ON THE OUTER SURFACE OF SAID ENVELOPE.
References Cited (Backward Citations)
US2966605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |