Patent US3300675A successfully refreshed from Google Patents.
US3300675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric incandescent lamp filament support
Assignee: Individual
•
Filing: 1964-04-03
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Granted: 1967-01-24
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Expires: 1984-04-03
Abstract
No abstract record available.
Inventors
- 👤 Deshaw Zoltan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:48
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/18; H01K1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
AN ELECTRIC INCANDESCENT LAMP HAVING A GENERALLY TUBULAR ENVELOPE, AN END CAP AT ONE END OF SAID ENVELOPE, A FILAMENT EXTENDING ALONG THE INTERIOR OF SAID ENVELOPE, AN ELECTRICALLY INSULATING FILAMENT SUPPORT COMPRISING A TUBULAR SPINE, A FIRST ELECTRODE EXTENDING FROM SAID CAP AND INTO ENGAGEMENT WITH THE NEARER END OF SIAD SPINE SO AS TO SUPPORT SUCH SPINE AWAY FROM SAID ENVELOPE WHILE LEAVING AN END PORTION OF SUCH ELECTRODE PROJECTING FROM SAID SPINE, WHICH END PORTION IS DIRECTLY CONNECTED TO ONE END OF SAID FILAMENT, AND A SECOND ELECTRODE EXTENDING FROM SAID CAP, ALONG THE INTERIOR OF SAID SPINE, AND INTO CONTACT WITH THE SAID ENVELOPE AND THE END OF SAID SPINE WHICH IS REMOTE FROM SAID END CAP THEREBY TO SUPPORT THAT SPINE END AWAY FROM SAID ENVELOPE WHILE LEAVING AN END PORTION OF SAID SECOND ELECTRODE WHICH PROJECTS LATERALLY FROM SAID SPINE AND IS DIRECTLY CONNECTED TO THE OTHER END OF SAID FILAMENT.
Claim 2
Dependent Claim
157 words
AN ELECTRIC INCANDESCENT LAMP HAVING A GENERALLY TUBULAR ENVELOPE, AN END CAP AT ONE END OF SAID ENVELOPE, A FILAMENT EXTENDING ALONG THE INTERIOR OF SAID ENVELOPE, AN ELECTRICALLY INSULATING FILAMENT SUPPORT COMPRISING A TUBULAR SPINE, A FIRST ELECTRODE EXTENDING FROM SAID CAP AND INTO ENGAGEMENT WITH THE NEARER END OF SIAD SPINE SO AS TO SUPPORT SUCH SPINE AWAY FROM SAID ENVELOPE WHILE LEAVING AN END PORTION OF SUCH ELECTRODE PROJECTING FROM SAID SPINE, WHICH END PORTION IS DIRECTLY CONNECTED TO ONE END OF SAID FILAMENT, AND A SECOND ELECTRODE EXTENDING FROM SAID CAP, ALONG THE INTERIOR OF SAID SPINE, AND INTO CONTACT WITH THE SAID ENVELOPE AND THE END OF SAID SPINE WHICH IS REMOTE FROM SAID END CAP THEREBY TO SUPPORT THAT SPINE END AWAY FROM SAID ENVELOPE WHILE LEAVING AN END PORTION OF SAID SECOND ELECTRODE WHICH PROJECTS LATERALLY FROM SAID SPINE AND IS DIRECTLY CONNECTED TO THE OTHER END OF SAID FILAMENT.
References Cited (Backward Citations)
US988416A
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US1885431A
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US1993829A
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US2087759A
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US2424457A
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |