Patent US2853697A successfully refreshed from Google Patents.
US2853697A
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US
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Logic-element decimal register
Assignee: Westinghouse Electric Corp
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Filing: 1957-07-31
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Granted: 1958-09-23
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Expires: 1977-07-31
Abstract
No abstract record available.
Inventors
- 👤 Sheldon D Silliman
- 👤 Willard A Derr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:33
CPC Classifications
G; G11; G11C; G11C19/00; H; H03; H03K; H03K19/00; H03K19/02; H03K19/12; H03K19/16; H03K23/00; H03K23/76
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) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |