US3265922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lamp
Assignee: US Philips Corp
•
Filing: 1961-10-05
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Granted: 1966-08-09
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Expires: 1981-10-05
Abstract
No abstract record available.
Inventors
- 👤 Verbeek Leo Henricus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:01
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/42; H01K1/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
AN ELECTRIC LAMP COMPRISING A LAMP BULB HAVING A LAMP NECK INCLUDING A HOLLOW, ANNULAR-SHAPED STEM TUBE, A FILAMENT IN SAID LAMP BULB, A CENTER CONTACT, A SIDE CONTACT STRUCTURALLY SEPARATE FROM SAID CENTER CONTACT, CURRENT SUPPLY WIRES CONNECTING SAID FILAMENT WITH SAID CONTACTS, A LAMP PINCH SUPPORTING SAID CURRENT SUPPLY WIRES, AND AN EXHAUST TUBE LOCATED IN THE HOLLOW OF SAID STEM TUBE, SAID CENTER CONTACT BEING SUPPORTED BY A PART OF SAID EXHAUST TUBE.
Claim 2
Dependent Claim
76 words
AN ELECTRIC LAMP COMPRISING A LAMP BULB HAVING A LAMP NECK INCLUDING A HOLLOW, ANNULAR-SHAPED STEM TUBE, A FILAMENT IN SAID LAMP BULB, A CENTER CONTACT, A SIDE CONTACT STRUCTURALLY SEPARATE FROM SAID CENTER CONTACT, CURRENT SUPPLY WIRES CONNECTING SAID FILAMENT WITH SAID CONTACTS, A LAMP PINCH SUPPORTING SAID CURRENT SUPPLY WIRES, AND AN EXHAUST TUBE LOCATED IN THE HOLLOW OF SAID STEM TUBE, SAID CENTER CONTACT BEING SUPPORTED BY A PART OF SAID EXHAUST TUBE.
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |