US3274427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-starting arc lamp
Assignee: PEK LABS Inc
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Filing: 1965-03-15
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Granted: 1966-09-20
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Expires: 1985-03-15
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Paquette
- 👤 Charles H Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:24
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/98
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A SELF-STARTING ARC LAMP COMPRISING: A SEALED ENVELOPE HAVING DISPOSED THEREIN AN ANODE AND A CATHODE WHICH ARE SPACED APART TO DEFINE AN ARC GAP THEREBETWEEN; CONNECTOR MEANS COUPLED TO SAID ANODE AND TO SAID CATHODE AND PASSING THROUGH SAID SEALED ENVELOPE FOR APPLYING ELECTRICAL OPERATING POWER ACROSS SAID ANODE AND CATHODE; AND A CONSUMABLE, CONDUCTIVE BRIDGEWIRE OF SUBSTANTIALLY UNIFORM CROSS SECTION DISPOSED AXIALLY ACROSS SAID ARC GAP AND HAVING OPPOSITE END PORTIONS CONDUCTIVELY COUPLED TO SAID ANODE AND SAID CATHODE RESPECTIVELY, THE CROSS SECTIONAL AREA OF SAID BRIDGEWIRE BEING SELECTED SUFFICIENTLY SMALL TO FUSE UPON THE APPLICATION OF ELECTRICAL OPERATING POWER ACROSS SAID ANODE AND CATHODE WHICH CORRESPONDS TO THE NORMAL OPERATING POWER FOR SUSTAINING AN ARC BETWEEN SAID ANODE AND SAID CATHODE.
Claim 2
Dependent Claim
124 words
A SELF-STARTING ARC LAMP COMPRISING: A SEALED ENVELOPE HAVING DISPOSED THEREIN AN ANODE AND A CATHODE WHICH ARE SPACED APART TO DEFINE AN ARC GAP THEREBETWEEN; CONNECTOR MEANS COUPLED TO SAID ANODE AND TO SAID CATHODE AND PASSING THROUGH SAID SEALED ENVELOPE FOR APPLYING ELECTRICAL OPERATING POWER ACROSS SAID ANODE AND CATHODE; AND A CONSUMABLE, CONDUCTIVE BRIDGEWIRE OF SUBSTANTIALLY UNIFORM CROSS SECTION DISPOSED AXIALLY ACROSS SAID ARC GAP AND HAVING OPPOSITE END PORTIONS CONDUCTIVELY COUPLED TO SAID ANODE AND SAID CATHODE RESPECTIVELY, THE CROSS SECTIONAL AREA OF SAID BRIDGEWIRE BEING SELECTED SUFFICIENTLY SMALL TO FUSE UPON THE APPLICATION OF ELECTRICAL OPERATING POWER ACROSS SAID ANODE AND CATHODE WHICH CORRESPONDS TO THE NORMAL OPERATING POWER FOR SUSTAINING AN ARC BETWEEN SAID ANODE AND SAID CATHODE.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |