US3483473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency converting and selecting system including mixer circuit with field effect transistor coupled to band-pass filter through impedance inverting circuit
Assignee: Motorola Solutions Inc
•
Filing: 1966-04-04
•
Granted: 1969-12-09
•
Expires: 1986-04-04
Abstract
No abstract record available.
Inventors
- 👤 Charles N Lynk Jr
- 👤 Ronald L Kaczmarek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:16
CPC Classifications
H; H03; H03D; H03D7/00; H03D7/12; H03D7/125
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |