US3132278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iodine cycle incandescent lamps
Assignee: General Electric Co
•
Filing: 1961-09-18
•
Granted: 1964-05-05
•
Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Clifford B Collins
- 👤 Edward G Zubler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:25
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/52; H01K1/54; H01K1/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN ELECTRIC INCANDESCENT LAMP OF THE IODINE-CYCLE TYPE COMPRISING A SEALED BULB OF LIGHT-TRANSMITTING MATERIAL CONTAINING AN INCANDESCENT TUNGSTEN FILAMENT, A FILLING OF INERT GAS AND A SMALL AMOUNT OF IODINE VAPOR IN SAID BULB EFFECTIVE TO FUNCTION AS A REGENERATIVE GETTER RETURNING VAPORIZED TUNGSTEN TO SAID FILAMENT, AND A LOCALIZED QUANTITY OF CARBON WITHIN SAID BULB IN AT LEAST ONE LOCATION REMOVED FROM SAID FILAMENT EXCEPT AT THE RELATIVELY COOLER ENDS THEREOF BUT HEATED THEREBY TO A TEMPERATURE SUFFICIENT TO REACT CHEMICALLY WITH OXYGEN AND WATER VAPOR.
Claim 2
Dependent Claim
88 words
AN ELECTRIC INCANDESCENT LAMP OF THE IODINE-CYCLE TYPE COMPRISING A SEALED BULB OF LIGHT-TRANSMITTING MATERIAL CONTAINING AN INCANDESCENT TUNGSTEN FILAMENT, A FILLING OF INERT GAS AND A SMALL AMOUNT OF IODINE VAPOR IN SAID BULB EFFECTIVE TO FUNCTION AS A REGENERATIVE GETTER RETURNING VAPORIZED TUNGSTEN TO SAID FILAMENT, AND A LOCALIZED QUANTITY OF CARBON WITHIN SAID BULB IN AT LEAST ONE LOCATION REMOVED FROM SAID FILAMENT EXCEPT AT THE RELATIVELY COOLER ENDS THEREOF BUT HEATED THEREBY TO A TEMPERATURE SUFFICIENT TO REACT CHEMICALLY WITH OXYGEN AND WATER VAPOR.
References Cited (Backward Citations)
US2072788A
Cited
US2883571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |