US2915718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave transmission lines
Assignee: TDK Micronas GmbH
•
Filing: 1955-08-05
•
Granted: 1959-12-01
•
Expires: 1975-08-05
Abstract
No abstract record available.
Inventors
- 👤 Donald D Grieg
- 👤 Herbert F Engelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:29
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/18; H01B11/1808; H01P; H01P11/00; H01P11/001
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1854255A
Cited
US2086629A
Cited
US2231602A
Cited
US2520991A
Cited
US2522731A
Cited
US2512945A
Cited
US2599126A
Cited
US2601445A
Cited
US2619537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |