US3183373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency high speed switching circuits
Assignee: Individual
•
Filing: 1962-09-25
•
Granted: 1965-05-11
•
Expires: 1982-09-25
Abstract
No abstract record available.
Inventors
- 👤 Sakurai Masami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:30
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/74
Claims Analysis
Total Claims: 0
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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) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |