US3527964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase shifting circuit controlled by a direct current signal
Assignee: Motorola Solutions Inc
•
Filing: 1967-06-07
•
Granted: 1970-09-08
•
Expires: 1987-06-07
Abstract
No abstract record available.
Inventors
- 👤 Robert B Hansen
- 👤 Gordon E Reichard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:50
CPC Classifications
H; H03; H03H; H03H11/00; H03H11/02; H03H11/16; H03H11/20; H04; H04N; H04N9/00; H04N9/44; H04N9/455; H04N9/64; H04N9/643
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2376392A
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US2531474A
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US2606966A
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US2753519A
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US2958832A
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US3267393A
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US3215927A
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US3191130A
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US3315170A
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US3274334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |