Patent US3499108A successfully refreshed from Google Patents.
US3499108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication system
Assignee: United States Department of the Navy
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Filing: 1965-08-25
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Granted: 1970-03-03
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Expires: 1985-08-25
Abstract
No abstract record available.
Inventors
- 👤 Lewis B Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:50
CPC Classifications
H; H04; H04N; H04N21/00; H04N21/20; H04N21/23; H04N21/238; H04N21/2383; H04L; H04L27/00; H04L27/26; H04N21/40; H04N21/43; H04N21/438; H04N21/4382; H04N7/00; H04N7/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2270070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |