Patent US3383601A successfully refreshed from Google Patents.
US3383601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixer circuit employing linear resistive elements
Assignee: Individual
•
Filing: 1967-05-17
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Granted: 1968-05-14
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Expires: 1987-05-17
Abstract
No abstract record available.
Inventors
- 👤 William K Squires
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:08
CPC Classifications
H; H03; H03D; H03D7/00; H03D7/14; H03D7/1425; H03D7/1441; H03D7/1408; H03D7/1491; H03D2200/00; H03D2200/0001; H03D2200/0025; H03D2200/0041; H03D2200/0043; H03D7/12; H03D7/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |