US3211943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric incandescent lamp
Assignee: General Electric Co
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Filing: 1963-10-07
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Granted: 1965-10-12
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Jr John G Cardwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:51
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/62; H01K1/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN ELECTRIC INCANDESCENT LAMP COMPRISING AN ELONGATED ENVELOPE OF VITEROUS MATERIAL HAVING PINCH SEALS AT ITS END, A LEAD-IN CONDUCTOR EXTENDING INTO EACH OF SAID PINCH SEALS, A FILAMENT EXTENDING LONGITUDINALLY OF SAID ENVELOPE WITH ITS END EMBEDDED IN SAID SEALS, AND A PAIR OF FUSIBLE SUPPORT MEMBERS FOR SAID FILAMENT HAVING ONE OF THEIR ENDS INTERWOUND WITH A COILED PORTION OF THE FILAMENT AND THEIR OTHER END CONNECTED TO SAID LEAD-IN CONDUCTORS WITHIN THE SEAL, RESPECTIVELY.
Claim 2
Dependent Claim
77 words
AN ELECTRIC INCANDESCENT LAMP COMPRISING AN ELONGATED ENVELOPE OF VITEROUS MATERIAL HAVING PINCH SEALS AT ITS END, A LEAD-IN CONDUCTOR EXTENDING INTO EACH OF SAID PINCH SEALS, A FILAMENT EXTENDING LONGITUDINALLY OF SAID ENVELOPE WITH ITS END EMBEDDED IN SAID SEALS, AND A PAIR OF FUSIBLE SUPPORT MEMBERS FOR SAID FILAMENT HAVING ONE OF THEIR ENDS INTERWOUND WITH A COILED PORTION OF THE FILAMENT AND THEIR OTHER END CONNECTED TO SAID LEAD-IN CONDUCTORS WITHIN THE SEAL, RESPECTIVELY.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |