US3050700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase shifting circuit
Assignee: RCA Corp
•
Filing: 1959-01-19
•
Granted: 1962-08-21
•
Expires: 1979-01-19
Abstract
No abstract record available.
Inventors
- 👤 Kerns H Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:14
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/18; H03C; H03C1/00; H03C1/52; H03C1/60; H03H11/00; H03H11/02; H03H11/16; H04; H04B; H04B1/00; H04B1/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2124599A
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US2227906A
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US2666181A
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US2680151A
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US2711516A
Cited
US2759044A
Cited
US2755381A
Cited
US2790956A
Cited
US2760164A
Cited
US2922965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |