Patent US2875336A successfully refreshed from Google Patents.
US2875336A
Expired / Lapsed
US
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Electronic signal delay circuits
Assignee: British Tabulating Machine Co Ltd
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Filing: 1956-07-19
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Granted: 1959-02-24
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Expires: 1976-07-19
Abstract
No abstract record available.
Inventors
- 👤 Williams Nigel Arthu Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:49
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/13; H03K5/145
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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |