US3445681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite non-linear networks
Assignee: International Standard Electric Corp
•
Filing: 1965-07-01
•
Granted: 1969-05-20
•
Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 Kenneth William Cattermole
- 👤 Donald Robert Barber
- 👤 Edward Harry Lambourn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:47
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/26; G06G7/28; H; H03; H03G; H03G1/00; H03G1/0005; H03G1/0088; H03G7/00; H03G7/06; H04; H04B; H04B1/00; H04B1/62; H04B1/64
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1477017A
Cited
US1737830A
Cited
US2074047A
Cited
US2480201A
Cited
US2768352A
Cited
US2958831A
Cited
US3031142A
Cited
USRE26029E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |