US3045071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical transmission and storage of information represented by direct voltages
Assignee: Decca Ltd
•
Filing: 1957-11-12
•
Granted: 1962-07-17
•
Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 Matthews Robert
- 👤 Johnston James Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:01
CPC Classifications
G; G08; G08C; G08C19/00; G08C19/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |