US2676309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency power transmission line for cyclotrons and the like
Assignee: Individual
•
Filing: 1950-04-05
•
Granted: 1954-04-20
•
Expires: 1970-04-05
Abstract
No abstract record available.
Inventors
- 👤 William J Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:20
CPC Classifications
H; H01; H01P; H01P3/00; H01P3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1671148A
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US1853677A
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US1950127A
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US2034033A
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GB541380A
Cited
US2287502A
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US2411128A
Cited
US2440652A
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US2526321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |