Patent US5209799A successfully refreshed from Google Patents.
US3496291A
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Enciphering teleprinter text for telex channels
Assignee: International Standard Electric Corp
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Filing: 1967-06-12
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Granted: 1970-02-17
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Expires: 1987-06-12
Abstract
No abstract record available.
Inventors
- 👤 Kaare Ragnar Meisingset
- 👤 Ivar Mo
- 👤 Per R Abrahamsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:30
CPC Classifications
H; H04; H04L; H04L9/00; H04L9/36; H04L9/06; H04L9/0618; H04L9/0637; H04L9/08; H04L9/0861
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |