US2773243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave guide with dual purpose gas discharge device
Assignee: TDK Micronas GmbH
•
Filing: 1952-07-25
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Granted: 1956-12-04
•
Expires: 1972-07-25
Abstract
No abstract record available.
Inventors
- 👤 Goldstein Ladislas
- 👤 Herbert F Engelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:00
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/02; H01J17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2454761A
Cited
US2404116A
Cited
US2594732A
Cited
US2491971A
Cited
US2632854A
Cited
US2625668A
Cited
US2631255A
Cited
US2724791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |