Patent US2707269A successfully refreshed from Google Patents.
US2707269A
Expired / Lapsed
US
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Microwave amplitude modulator
Assignee: Westinghouse Electric Corp
•
Filing: 1948-10-15
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Granted: 1955-04-26
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Expires: 1968-10-15
Abstract
No abstract record available.
Inventors
- 👤 Altar William
- 👤 Miller Theadore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:28
CPC Classifications
H; H03; H03C; H03C7/00; H03C7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2421725A
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US2453453A
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US2593120A
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US2496521A
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US2475474A
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US2462893A
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US2462841A
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US2477428A
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US2447543A
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US2484256A
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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) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |