Patent US3089053A successfully refreshed from Google Patents.
US3089053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercury discharge tube
Assignee: Individual
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Filing: 1960-09-23
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Granted: 1963-05-07
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Expires: 1980-09-23
Abstract
No abstract record available.
Inventors
- 👤 Vang Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:41
CPC Classifications
H; H01; H01J; H01J13/00; H01J13/02; H01J2893/00; H01J2893/0072; H01J2893/0073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A MERCURY DISCHARGE TUBE HAVING AN EVACUATED ENVELOPE, A MERCURY CATHODE POOL, A MERCURY ANODE POOL SPACED FROM SAID CATHODE POOL AND IGNITER MEANS WITHIN SAID CATHODE POOL, AN IMPROVED VAPOR CONDENSING MEANS COMPRISING A DIELECTRIC DOME EMBRACING SAID ANODE POOL AND HAVING AT LEAST ONE OPENING ABOVE THE SURFACE OF SAID ANODE POOL; A VAPOR CONDENSING DOME CONCENTRIC WITH SAID DIELECTRIC DOME DEFINING AN EXPANSION CHAMBER BETWEEN SAID DOMES, THE PERIPHERAL EXTREMITY OF SAID EXPANSION CHAMBER DEPENDING INTO SAID ANODE POOL; AND PORT MEANS AT THE LOWER MARGIN OF SAID DIELECTRIC DOME COMMUNICATING SAID EXPANSION CHAMBER WITH SAID ANODE POOL.
Claim 2
Dependent Claim
102 words
IN A MERCURY DISCHARGE TUBE HAVING AN EVACUATED ENVELOPE, A MERCURY CATHODE POOL, A MERCURY ANODE POOL SPACED FROM SAID CATHODE POOL AND IGNITER MEANS WITHIN SAID CATHODE POOL, AN IMPROVED VAPOR CONDENSING MEANS COMPRISING A DIELECTRIC DOME EMBRACING SAID ANODE POOL AND HAVING AT LEAST ONE OPENING ABOVE THE SURFACE OF SAID ANODE POOL; A VAPOR CONDENSING DOME CONCENTRIC WITH SAID DIELECTRIC DOME DEFINING AN EXPANSION CHAMBER BETWEEN SAID DOMES, THE PERIPHERAL EXTREMITY OF SAID EXPANSION CHAMBER DEPENDING INTO SAID ANODE POOL; AND PORT MEANS AT THE LOWER MARGIN OF SAID DIELECTRIC DOME COMMUNICATING SAID EXPANSION CHAMBER WITH SAID ANODE POOL.
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |