US3437934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Series resonant circuit for coupling output of mixer to input of intermediate frequency amplifier
Assignee: Motorola Solutions Inc
•
Filing: 1966-01-12
•
Granted: 1969-04-08
•
Expires: 1986-01-12
Abstract
No abstract record available.
Inventors
- 👤 Frank L Pawlowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:28
CPC Classifications
H; H03; H03H; H03H2/00; H03H2/005; H03H2/008; H03D; H03D7/00; H03D7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1850831A
Cited
US2252609A
Cited
US2653228A
Cited
US2773979A
Cited
US2778934A
Cited
US2803745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |