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Patent US2935604A successfully refreshed from Google Patents.
US2935604A
Expired / Lapsed
US
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Long range communication system
Assignee: Individual
•
Filing: 1951-12-01
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Granted: 1960-05-03
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Expires: 1971-12-01
Abstract
No abstract record available.
Inventors
- 👤 Toro Michael J Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:39
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2175270A
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US2266401A
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US2227057A
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US2310692A
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US2426187A
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US2462110A
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US2568265A
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US2478919A
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US2531412A
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US2495690A
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US2541986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |