US3492580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suppressed carrier vestigial-sideband communication system
Assignee: Nokia Inc
•
Filing: 1966-05-05
•
Granted: 1970-01-27
•
Expires: 1986-05-05
Abstract
No abstract record available.
Inventors
- 👤 Leon Berman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:06
CPC Classifications
H; H03; H03D; H03D1/00; H03D1/22; H03D1/24; H04; H04B; H04B1/00; H04B1/68
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1527228A
Cited
US2110046A
Cited
US2273023A
Cited
US2276863A
Cited
US2389356A
Cited
US2835889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |