US2982809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telegraph way station system
Assignee: —
•
Filing: —
•
Granted: 1961-05-02
•
Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:38
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/40; H04L12/40006; H04L12/403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2238142A
Cited
US2419729A
Cited
US2501063A
Cited
US2502654A
Cited
US2766318A
Cited
US2667533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |