US2516528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave guide coupler
Assignee: Individual
•
Filing: 1944-03-21
•
Granted: 1950-07-25
•
Expires: 1964-03-21
Abstract
No abstract record available.
Inventors
- 👤 Edward M Purcell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:31
CPC Classifications
G; G01; G01R; G01R27/00; G01R27/02; G01R27/04; G01R27/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016; Y10T29/49789; Y10T29/49796
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1426207A
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US1979912A
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US2088106A
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US2106713A
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US2113675A
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US2129669A
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US2191271A
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US2203984A
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US2404797A
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US2359869A
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US2403289A
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US2407267A
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US2433011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |