US2768355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission line with impedancematching terminations
Assignee: AT&T Inc
•
Filing: 1952-05-31
•
Granted: 1956-10-23
•
Expires: 1972-05-31
Abstract
No abstract record available.
Inventors
- 👤 Charles N Nebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:31
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1713603A
Cited
DE454463C
Cited
FR626763A
Cited
US1815256A
Cited
US1815254A
Cited
US2252613A
Cited
US2158978A
Cited
US2163750A
Cited
US2223736A
Cited
US2628312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |