US2533239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impedance transformer for coaxial lines
Assignee: International Standard Electric Corp
•
Filing: 1946-01-05
•
Granted: 1950-12-12
•
Expires: 1966-01-05
Abstract
No abstract record available.
Inventors
- 👤 Gent Alfred Walter
- 👤 Wallis Peter John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:06
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/02; H01P5/022; H01P5/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1841473A
Cited
US1932448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |