US2473724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra high frequency coupler between contiguous ends of aligned wave guide sections
Assignee: Westinghouse Electric Corp
•
Filing: 1943-09-24
•
Granted: 1949-06-21
•
Expires: 1963-09-24
Abstract
No abstract record available.
Inventors
- 👤 Ernest C Okress
- 👤 Alfred H Laidig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:53
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/08
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |