Patent US4930266A successfully refreshed from Google Patents.
Patent US336671A successfully refreshed from Google Patents.
Patent US3059068A successfully refreshed from Google Patents.
US3059068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carrier current communication systems incorporating repeaters
Assignee: International Standard Electric Corp
•
Filing: 1960-06-27
•
Granted: 1962-10-16
•
Expires: 1980-06-27
Abstract
No abstract record available.
Inventors
- 👤 Frankton William Jesse
- 👤 Roseway Walter Norman
- 👤 Atkinson Geoffrey
- 👤 Archibald William John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:16
CPC Classifications
H; H04; H04B; H04B17/00; H04B17/40; H04B17/401; H04B17/402; H04B17/405
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2784264A
Cited
US2890296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |