US3374397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicator circuit with all electrodes connected to a common point through individual resistors
Assignee: INDOHEEM NV
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Filing: 1966-04-25
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Granted: 1968-03-19
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Expires: 1986-04-25
Abstract
No abstract record available.
Inventors
- 👤 Cornelis J Krayenbrink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:09
CPC Classifications
H; H03; H03K; H03K21/00; H03K21/08; G; G09; G09G; G09G3/00; G09G3/04; G09G3/06; G09G3/10; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J2893/00; H01J2893/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN INDICATOR CIRCUIT COMPRISING A GLOW DISCHARGE TUBE HAVING AT LEAST ONE ANODE AND AT LEAST TWO CATHODES, MEANS FOR SELECTIVELY CONNECTING ONE ANODE AND ONE CATHODE TO A SOURCE OF SUPPLY VOLTAGE THEREBY TO ESTABLISH A GLOW DISCHARGE BETWEEN THE ANODE AND CATHODE CONCERNED, A PLURALITY OF SEPARATE RESISTORS, AND MEANS CONNECTING ALL ANODES AND CATHODES THROUGH SEPARATE ONES OF SAID RESISTORS TO A COMMON STAR POINT WHICH IS NOT CONNECTED TO ANYTHING ELSE.
Claim 2
Dependent Claim
75 words
AN INDICATOR CIRCUIT COMPRISING A GLOW DISCHARGE TUBE HAVING AT LEAST ONE ANODE AND AT LEAST TWO CATHODES, MEANS FOR SELECTIVELY CONNECTING ONE ANODE AND ONE CATHODE TO A SOURCE OF SUPPLY VOLTAGE THEREBY TO ESTABLISH A GLOW DISCHARGE BETWEEN THE ANODE AND CATHODE CONCERNED, A PLURALITY OF SEPARATE RESISTORS, AND MEANS CONNECTING ALL ANODES AND CATHODES THROUGH SEPARATE ONES OF SAID RESISTORS TO A COMMON STAR POINT WHICH IS NOT CONNECTED TO ANYTHING ELSE.
References Cited (Backward Citations)
US3335266A
Cited
US3227922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |