US3351803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal and lead-in conductor assembly for gaseous discharge lamps
Assignee: Philips North America LLC
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Filing: 1964-11-12
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Granted: 1967-11-07
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Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Kearney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:00
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/36; H01J61/366; C; C03; C03C; C03C27/00; C03C27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A HIGH-PRESSURE HIGH-CURRENT ELECTRIC DISCHARGE LAMP COMPRISING; (A) A SEALED VITREOUS ENVELOPE HAVING A BULBOUS PORTION AND AN OUTWARDLY EXTENDING ELONGATED END PORTION, (B) A REFRACTORY METAL ELECTRODE ANCHORED IN SAID ELONGATED END PORTION AND EXTENDING THEREFROM INTO THE BULBOUS PORTION OF SAID ENVELOPE, (C) A LEAD-IN ASSEMBLY FOR SAID ELECTRODE COMPRISING A PLURALITY OF SPACED LONGITUDINALLY EXTENDING REFRACTORY METAL CONDUCTORS HERMETICALLY SEALED WITHIN THE END PORTION OF SAID ENVELOPE WITH THE INNER ENDS OF SAID CONDUCTORS PROJECTING LATERALLY INWARD TOWARD THE AXIS OF SAID END PORTION AND SECURED TO MOVABLE REFRACTORY METAL MEMBER THAT IS LOCATED WITHIN SAID END PORTION PROXIMATE THE ANCHORED END OF SAID ELECTRODE, AND (D) MEANS MECHANICALLY COUPLING SAID MOVABLE REFRACTORY METAL MEMBER TO THE PROXIMATE END OF SAID ELECTRODE AND PROVIDING A POSITIVE ELECTRICAL AND STRESSRELIEVING CONNECTION BETWEEN SAID SEALED-IN CONDUCTORS AND SAID ELECTORDE.
Claim 2
Dependent Claim
140 words
A HIGH-PRESSURE HIGH-CURRENT ELECTRIC DISCHARGE LAMP COMPRISING; (A) A SEALED VITREOUS ENVELOPE HAVING A BULBOUS PORTION AND AN OUTWARDLY EXTENDING ELONGATED END PORTION, (B) A REFRACTORY METAL ELECTRODE ANCHORED IN SAID ELONGATED END PORTION AND EXTENDING THEREFROM INTO THE BULBOUS PORTION OF SAID ENVELOPE, (C) A LEAD-IN ASSEMBLY FOR SAID ELECTRODE COMPRISING A PLURALITY OF SPACED LONGITUDINALLY EXTENDING REFRACTORY METAL CONDUCTORS HERMETICALLY SEALED WITHIN THE END PORTION OF SAID ENVELOPE WITH THE INNER ENDS OF SAID CONDUCTORS PROJECTING LATERALLY INWARD TOWARD THE AXIS OF SAID END PORTION AND SECURED TO MOVABLE REFRACTORY METAL MEMBER THAT IS LOCATED WITHIN SAID END PORTION PROXIMATE THE ANCHORED END OF SAID ELECTRODE, AND (D) MEANS MECHANICALLY COUPLING SAID MOVABLE REFRACTORY METAL MEMBER TO THE PROXIMATE END OF SAID ELECTRODE AND PROVIDING A POSITIVE ELECTRICAL AND STRESSRELIEVING CONNECTION BETWEEN SAID SEALED-IN CONDUCTORS AND SAID ELECTORDE.
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |