US3119073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diode parametric amplifier
Assignee: MA Com Inc
•
Filing: 1960-04-25
•
Granted: 1964-01-21
•
Expires: 1980-04-25
Abstract
No abstract record available.
Inventors
- 👤 Harris Francis Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:17
CPC Classifications
H; H03; H03F; H03F7/00; H03F7/04; H03F2200/00; H03F2200/372
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2536051A
Cited
US2790150A
Cited
US2962676A
Cited
US3018443A
Cited
US2970275A
Cited
US2951207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |