Patent US3344303A successfully refreshed from Google Patents.
US3344303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric incandescent lamp having two incandescent bodies with a reflector for each
Assignee: US Philips Corp
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Filing: 1965-04-16
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Granted: 1967-09-26
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Expires: 1985-04-16
Abstract
No abstract record available.
Inventors
- 👤 Prenger Louis Karel Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:49
CPC Classifications
H; H01; H01K; H01K7/00; H01K7/02; H01K1/00; H01K1/28; H01K1/32; H01K1/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN ELECTRIC INCANDESCENT LAMP COMPRISING TWO INCANDESCENT BODIES, MEANS MOUNTING SAID INCANDESCENT BODIES IN SPACED RELATIONSHIP WITHIN SAID LAMP, A REFLECTOR IN SAID LAMP FOR EACH OF SAID INCANDESCENT BODIES AND FORMED BY A BODY OF REVOLUTION, EACH OF SAID INCANDESCENT BODIES BEING DISPOSED ON THE AXIS OF REVOLUTION OF SAID REFLECTOR IN A POSITION RELATIVE TO SAID REFLECTOR SUCH THAT SAID LIGHT RAYS REFLECTED BY SAID REFLECTOR AND EMANATING
Claim 2
Dependent Claim
70 words
AN ELECTRIC INCANDESCENT LAMP COMPRISING TWO INCANDESCENT BODIES, MEANS MOUNTING SAID INCANDESCENT BODIES IN SPACED RELATIONSHIP WITHIN SAID LAMP, A REFLECTOR IN SAID LAMP FOR EACH OF SAID INCANDESCENT BODIES AND FORMED BY A BODY OF REVOLUTION, EACH OF SAID INCANDESCENT BODIES BEING DISPOSED ON THE AXIS OF REVOLUTION OF SAID REFLECTOR IN A POSITION RELATIVE TO SAID REFLECTOR SUCH THAT SAID LIGHT RAYS REFLECTED BY SAID REFLECTOR AND EMANATING
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |