US3286118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric incandescent lamps
Assignee: Associated Electrical Industries Ltd
•
Filing: 1963-06-28
•
Granted: 1966-11-15
•
Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur S Vause
- 👤 John W T Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:37
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/28; H01K1/38; H01K9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
AN ELECTRIC INCANDESCENT LAMP COMPRISING A SEALED LIGHT TRANSMITTING EVELOPE COMPOSED OF TWO TROUGH SHAPED MEMBERS WITH RIMS SEALED TOGETHER IN OPPOSED RELATION WITH THE RIMS IN CONTACT, AT LEAST ONE FILAMENT WITHIN THE ENVELOPE AND ELECTRICAL CONNECTIONS FROM RESPECTIVE ENDS OF EACH FILAMENT EXTENDING IN SEALED RELA-
Claim 2
Dependent Claim
48 words
AN ELECTRIC INCANDESCENT LAMP COMPRISING A SEALED LIGHT TRANSMITTING EVELOPE COMPOSED OF TWO TROUGH SHAPED MEMBERS WITH RIMS SEALED TOGETHER IN OPPOSED RELATION WITH THE RIMS IN CONTACT, AT LEAST ONE FILAMENT WITHIN THE ENVELOPE AND ELECTRICAL CONNECTIONS FROM RESPECTIVE ENDS OF EACH FILAMENT EXTENDING IN SEALED RELA-
References Cited (Backward Citations)
US2929668A
Cited
US3093768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |