Patent US2319093A successfully refreshed from Google Patents.
US3497618A
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Binary data transmission system with switching between positive and negative sinusoids at binary transition points
Assignee: Digicom Inc
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Filing: 1966-08-19
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Granted: 1970-02-24
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Expires: 1986-08-19
Abstract
No abstract record available.
Inventors
- 👤 Olin E Thayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:46
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/18; H04L27/24; H04L25/00; H04L25/38; H04L25/40; H04L25/49; H04L25/4904; H04L27/02; H04L7/00; H04L7/02; H04L7/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3344352A
Cited
US3230310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |