US3349283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage gas discharge tube having a plurality of grids spaced apart along a ceramic envelope
Assignee: TDK Micronas GmbH
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Filing: 1965-12-09
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Granted: 1967-10-24
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Expires: 1985-12-09
Abstract
No abstract record available.
Inventors
- 👤 Krefft Hermann Eduard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:08
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/02; H01J5/06; H01J17/00; H01J17/50; H01J17/52; H01J17/54; H01J17/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A HIGH VOLTAGE GAS DISCHARGE TUBE COMPRISING AN INSULATIVE ENVELOPE CONTAINING A GAS THEREIN; A CATHODE AT ONE END OF SAID ENVELOPE; AN ANODE AT THE OTHER END; A PLURALITY OF GRIDS DISPOSED IN THE SPACE BETWEEN SAID CATHODE AND ANODE, AND MEANS SUPPORTING AND SEALING THE ENDS OF SAID GRIDS, ANODE AND CATHODE WITHIN THE WALLS OF SAID ENVELOPE, SAID ENDS EXTENDING THROUGH SAID WALLS TO THE OUTSIDE OF SAID TUBE ENVELOPE, SAID ENVELOPE INCLUDING A WALL PORTION HAVING A PLURALITY OF PLANAR ANNULAR INSULATIVE RINGS POSITIONED ALTERNATELY WITH AND SECURED TO SAID GRIDS, SAID RINGS HAVING TRANSVERSE EXTENSIONS PROJECTING INTERNALLY AND EXTERNALLY FROM SAID WALL AND POSITIONED BETWEEN AND SPACED FROM SAID ALTERNATE GRID ENDS, SAID WALL HAVING RECESSES BETWEEN ADJACENT RING EXTENSIONS, SAID EXTENSIONS PROVIDING A RELATIVELY ALONG DISCHARGE PATH BETWEEN ADJACENT SAID ENDS.
Claim 2
Dependent Claim
137 words
A HIGH VOLTAGE GAS DISCHARGE TUBE COMPRISING AN INSULATIVE ENVELOPE CONTAINING A GAS THEREIN; A CATHODE AT ONE END OF SAID ENVELOPE; AN ANODE AT THE OTHER END; A PLURALITY OF GRIDS DISPOSED IN THE SPACE BETWEEN SAID CATHODE AND ANODE, AND MEANS SUPPORTING AND SEALING THE ENDS OF SAID GRIDS, ANODE AND CATHODE WITHIN THE WALLS OF SAID ENVELOPE, SAID ENDS EXTENDING THROUGH SAID WALLS TO THE OUTSIDE OF SAID TUBE ENVELOPE, SAID ENVELOPE INCLUDING A WALL PORTION HAVING A PLURALITY OF PLANAR ANNULAR INSULATIVE RINGS POSITIONED ALTERNATELY WITH AND SECURED TO SAID GRIDS, SAID RINGS HAVING TRANSVERSE EXTENSIONS PROJECTING INTERNALLY AND EXTERNALLY FROM SAID WALL AND POSITIONED BETWEEN AND SPACED FROM SAID ALTERNATE GRID ENDS, SAID WALL HAVING RECESSES BETWEEN ADJACENT RING EXTENSIONS, SAID EXTENSIONS PROVIDING A RELATIVELY ALONG DISCHARGE PATH BETWEEN ADJACENT SAID ENDS.
References Cited (Backward Citations)
US2797348A
Cited
US2930922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |