Patent US3513398A successfully refreshed from Google Patents.
US3513398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced mixer circuits
Assignee: RCA Corp
•
Filing: 1966-01-27
•
Granted: 1970-05-19
•
Expires: 1986-01-27
Abstract
No abstract record available.
Inventors
- 👤 Bernard Bossard
- 👤 Shui Yuan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:11
CPC Classifications
H; H03; H03D; H03D7/00; H03D7/14; H03D7/1408; H03D9/00; H03D9/06; H03D9/0608
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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |