US2941036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical signal scrambling and unscrambling apparatus
Assignee: Boelkow Entwicklungen KG
•
Filing: 1956-07-23
•
Granted: 1960-06-14
•
Expires: 1976-07-23
Abstract
No abstract record available.
Inventors
- 👤 Honolka Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:53
CPC Classifications
G; G09; G09C; G09C1/00; G09C1/06; G09C1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1749744A
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US2079130A
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US2116683A
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US2352023A
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US2690473A
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US2644119A
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US2773120A
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US2753034A
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US2797260A
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US2794851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |