US3454753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog multiplier and modulating circuits employing electrolytic elements
Assignee: MARCIAN E HOFF JR
•
Filing: 1965-08-19
•
Granted: 1969-07-08
•
Expires: 1985-08-19
Abstract
No abstract record available.
Inventors
- 👤 Bernard Widrow
- 👤 Marcian E Hoff Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:19
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/0002; G11C13/0009; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/163; G06G7/18; G06G7/1813; H; H03; H03C; H03C1/00; H03C1/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |