US3403341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication system with autoamtic channel selection
Assignee: Rucker Co
•
Filing: 1965-09-13
•
Granted: 1968-09-24
•
Expires: 1985-09-13
Abstract
No abstract record available.
Inventors
- 👤 Munch Edvard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:06
CPC Classifications
G; G10; G10L; G10L25/00; G10L25/78; H; H04; H04B; H04B7/00; H04B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2572912A
Cited
US2521696A
Cited
US2743354A
Cited
US3035169A
Cited
US2985755A
Cited
US3102236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |