Patent CH295189A successfully refreshed from Google Patents.
Patent US3319079A successfully refreshed from Google Patents.
US3319079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Active phase shift compensation network
Assignee: North American Aviation Corp
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Filing: 1964-04-02
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Granted: 1967-05-09
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Expires: 1984-04-02
Abstract
No abstract record available.
Inventors
- 👤 Raymond T Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:39
CPC Classifications
H; H03; H03H; H03H11/00; H03H11/02; H03H11/16; H03H11/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2885495A
Cited
US2914682A
Cited
US2996683A
Cited
US3205455A
Cited
US3148285A
Cited
US3210681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |