US3506971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for electrostatically storing signal representations
Assignee: Unisys Corp
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Filing: 1969-06-23
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Granted: 1970-04-14
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Expires: 1989-06-23
Abstract
No abstract record available.
Inventors
- 👤 Richard S Sakurai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:40
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/225; G11; G11C; G11C11/00; G11C11/21; G11C11/23; G11C13/00; G11C13/04; G11C13/048; G11C27/00; G11C27/005; H; H01; H01J; H01J31/00; H01J31/08; H01J31/58; H01J31/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |