US3363188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for adjusting the gain or attenuation of an electric wave
Assignee: Individual
•
Filing: 1964-03-05
•
Granted: 1968-01-09
•
Expires: 1984-03-05
Abstract
No abstract record available.
Inventors
- 👤 Gardere Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:48
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/04; H03; H03G; H03G7/00; H03G7/002; H03G7/004; H04B1/00; H04B1/62; H04B1/64
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) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |