Patent US2611861A successfully refreshed from Google Patents.
US2699495A
Expired / Lapsed
US
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Automatic switchover system for radio relay
Assignee: Motorola Solutions Inc
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Filing: 1950-10-03
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Granted: 1955-01-11
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Expires: 1970-10-03
Abstract
No abstract record available.
Inventors
- 👤 Magnuski Henry
- 👤 Willis J Steen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:52
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/02; H04B1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2131109A
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US2148532A
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US2227381A
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US2252811A
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US2379069A
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US2508853A
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US2597043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |