US3148305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric incandescent lamp with a rectifying diode mounted within the lamp base
Assignee: General Electric Co
•
Filing: 1960-03-28
•
Granted: 1964-09-08
•
Expires: 1980-03-28
Abstract
No abstract record available.
Inventors
- 👤 Charles W Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:45
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/62; H05; H05B; H05B39/00; H05B39/04; H05B39/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
AN ELECTRIC INCADESCENT LAMP COMPRISING A BULB, A SINGLE FILAMENT IN SAID BULB, A BASE ON SAID BULB COMPRISING A METALLIC SHELL CONTACT ATTACHED TO SAID BULB AND HAVING AN INSULATING WEB AT ITS OUTER END, A PAIR OF CONTACTS SPACED APART IN SAID WEB, MEANS CONNECTING ONE END OF SAID FILAMENT TO SAID SHELL CONTACT, MEANS CONNECTING THE OTHER END OF SAID FILAMENT TO ONE OF SAID PAIR OF CONTACTS, A SEMICONDUCTOR RECTIFIER IN SAID BASE, AND MEANS CONNECTING SAID RECTIFIER ACROSS SAID PAIR OF CONTACTS, WHEREBY TO SUPPLY DIFFERENT LEVELS OF ILUMINATION UPON CONNECTING A CURRENT SUPPLY SOURCE ACROSS SAID SHELL CONTACT AND SAID ONE OF SAID PAIR OF CONTACTS AND, ALTERNATIVELY, ACROSS SAID SHELL CONTACT AND THE OTHER OF SAID PAIR OF CONTACTS.
Claim 2
Dependent Claim
126 words
AN ELECTRIC INCADESCENT LAMP COMPRISING A BULB, A SINGLE FILAMENT IN SAID BULB, A BASE ON SAID BULB COMPRISING A METALLIC SHELL CONTACT ATTACHED TO SAID BULB AND HAVING AN INSULATING WEB AT ITS OUTER END, A PAIR OF CONTACTS SPACED APART IN SAID WEB, MEANS CONNECTING ONE END OF SAID FILAMENT TO SAID SHELL CONTACT, MEANS CONNECTING THE OTHER END OF SAID FILAMENT TO ONE OF SAID PAIR OF CONTACTS, A SEMICONDUCTOR RECTIFIER IN SAID BASE, AND MEANS CONNECTING SAID RECTIFIER ACROSS SAID PAIR OF CONTACTS, WHEREBY TO SUPPLY DIFFERENT LEVELS OF ILUMINATION UPON CONNECTING A CURRENT SUPPLY SOURCE ACROSS SAID SHELL CONTACT AND SAID ONE OF SAID PAIR OF CONTACTS AND, ALTERNATIVELY, ACROSS SAID SHELL CONTACT AND THE OTHER OF SAID PAIR OF CONTACTS.
References Cited (Backward Citations)
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Cited
US2800601A
Cited
US2928024A
Cited
US2896125A
Cited
US2999220A
Cited
US3062986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |