US2713634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixer circuit
Assignee: RCA Corp
•
Filing: 1952-04-10
•
Granted: 1955-07-19
•
Expires: 1972-04-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Roy A Beers
- 👤 William L Gensel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:28
CPC Classifications
H; H03; H03D; H03D7/00; H03D7/06; H03D7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1793959A
Cited
US1828094A
Cited
US2091546A
Cited
US2186980A
Cited
GB504560A
Cited
GB505124A
Cited
US2342986A
Cited
US2562311A
Cited
US2617017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |