US2642494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mode suppressing coupling for cavity wavemeters
Assignee: Unisys Corp
•
Filing: 1948-05-26
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Granted: 1953-06-16
•
Expires: 1968-05-26
Abstract
No abstract record available.
Inventors
- 👤 Zaslavsky Sam
- 👤 Zanichkowsky Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:40
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/02; G01R23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2558021A
Cited
FR895164A
Cited
US2404226A
Cited
US2503256A
Cited
US2423506A
Cited
US2488378A
Cited
US2558385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |