US3283198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filament mount and heat shield structure for electric incandescent lamp
Assignee: Philips North America LLC
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Filing: 1963-12-10
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Granted: 1966-11-01
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Expires: 1983-12-10
Abstract
No abstract record available.
Inventors
- 👤 Emile M Bellott
- 👤 Harry H Haft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:18
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
AN ELECTRIC INCANDESCENT LAMP MOUNT COMPRISING, A VITREOUS STEM, A HEAT SHIELD SEATED ON ONE END OF SAID STEM AND SUBSTANTIALLY DISPOSED IN A PLANE THAT IS TRANSVERSE TO THE STEM AXIS, A PAIR OF LEAD WIRES SEALED THROUGH A PORTION OF SAID STEM AND EXTENDING BEYOND THE AFORESAID END THEREOF THROUGH SPACED OPENINGS IN SAID HEAT SHIELD, A SUPPORT WIRE ANCHORED IN SAID STEM AND EXENDING BEYOND THE SAID END THEREOF THROUGH ANOTHER OPENING IN SAID HEAT SHIELD, AND A FILAMENT FASTENED TO THE UPSTANDING TERMINAL PORTIONS OF SAID LEAD AND SUPPORT WIRES AND HELD THEREBY AT A LOCATION BEYOND SAID HEAT SHIELD, THE PORTIONS OF SAID HEAT SHIELD WHICH DEFINE AT LEAST TWO OF SAID OPENINGS BEING ELECTRICALLY NONCONDUCTIVE SO THAT SAID LEAD AND SUPPORT WIRES ARE INSULATED FROM EACH OTHER, THE OPENINGS IN SAID HEAT SHIELD EXTENDING INWARDLY FROM THE SHIELD PERIPHERY AND BEING SO ORIENTED RELATIVE TO SAID LEAD AND SUPPORTING WIRES THAT AT LEAST ONE OF SAID WIRES INTERLOCKINGLY ENGAGES THE SHIELD AND HOLDS IT IN THE AFORESAID POSITION ON THE END OF SAID STEM.
Claim 2
Dependent Claim
180 words
AN ELECTRIC INCANDESCENT LAMP MOUNT COMPRISING, A VITREOUS STEM, A HEAT SHIELD SEATED ON ONE END OF SAID STEM AND SUBSTANTIALLY DISPOSED IN A PLANE THAT IS TRANSVERSE TO THE STEM AXIS, A PAIR OF LEAD WIRES SEALED THROUGH A PORTION OF SAID STEM AND EXTENDING BEYOND THE AFORESAID END THEREOF THROUGH SPACED OPENINGS IN SAID HEAT SHIELD, A SUPPORT WIRE ANCHORED IN SAID STEM AND EXENDING BEYOND THE SAID END THEREOF THROUGH ANOTHER OPENING IN SAID HEAT SHIELD, AND A FILAMENT FASTENED TO THE UPSTANDING TERMINAL PORTIONS OF SAID LEAD AND SUPPORT WIRES AND HELD THEREBY AT A LOCATION BEYOND SAID HEAT SHIELD, THE PORTIONS OF SAID HEAT SHIELD WHICH DEFINE AT LEAST TWO OF SAID OPENINGS BEING ELECTRICALLY NONCONDUCTIVE SO THAT SAID LEAD AND SUPPORT WIRES ARE INSULATED FROM EACH OTHER, THE OPENINGS IN SAID HEAT SHIELD EXTENDING INWARDLY FROM THE SHIELD PERIPHERY AND BEING SO ORIENTED RELATIVE TO SAID LEAD AND SUPPORTING WIRES THAT AT LEAST ONE OF SAID WIRES INTERLOCKINGLY ENGAGES THE SHIELD AND HOLDS IT IN THE AFORESAID POSITION ON THE END OF SAID STEM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |