US3085174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glow-discharge indicator tube
Assignee: US Philips Corp
•
Filing: 1961-01-10
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Granted: 1963-04-09
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Expires: 1981-01-10
Abstract
No abstract record available.
Inventors
- 👤 Martinus Van Tol
- 👤 Botden Theodoor Peter Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:25
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/491
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN INDICATING SYSTEM INCLUDING A GLOW-DISCHARGE INDICATOR TUBE COMPRISING AN ENVELOPE AND WITHIN SAID ENVELOPE AN IONIZABLE GAS AT A GLOW-DISCHARGE PRESSURE, MAIN ANODE AND MAIN CATHODE ELECTRODES DEFINING A DISCHARGE PATH THEREBETWEEN, A PLURALITY OF AUXILIARY ANODES POSITIONED IN SAID DISCHARGE PATH ADJACENT THE MAIN CATHODE, MEANS TO APPLY A CYCLICALLY VARYING POSITIVE POTENTIAL TO SAID MAIN ANODE RELATIVE TO SAID CATHODE, AND MEANS TO APPLY A POSITIVE POTENTIAL TO ONE OF SAID AUXILIARY ANODES RELATIVE TO THE OTHER AUXILIARY ANODES WHEREBY THE GLOWDISCHARGE OCCURS SOLELY BETWEEN THE MAIN ANODE AND CATHODE ELECTRODES AND SAID LATTER AUXILIARY ANODE.
Claim 2
Dependent Claim
99 words
AN INDICATING SYSTEM INCLUDING A GLOW-DISCHARGE INDICATOR TUBE COMPRISING AN ENVELOPE AND WITHIN SAID ENVELOPE AN IONIZABLE GAS AT A GLOW-DISCHARGE PRESSURE, MAIN ANODE AND MAIN CATHODE ELECTRODES DEFINING A DISCHARGE PATH THEREBETWEEN, A PLURALITY OF AUXILIARY ANODES POSITIONED IN SAID DISCHARGE PATH ADJACENT THE MAIN CATHODE, MEANS TO APPLY A CYCLICALLY VARYING POSITIVE POTENTIAL TO SAID MAIN ANODE RELATIVE TO SAID CATHODE, AND MEANS TO APPLY A POSITIVE POTENTIAL TO ONE OF SAID AUXILIARY ANODES RELATIVE TO THE OTHER AUXILIARY ANODES WHEREBY THE GLOWDISCHARGE OCCURS SOLELY BETWEEN THE MAIN ANODE AND CATHODE ELECTRODES AND SAID LATTER AUXILIARY ANODE.
References Cited (Backward Citations)
US2946921A
Cited
US2937318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |