US2838689A
Expired / Lapsed
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Pulse signal translating apparatus
Assignee: International Business Machines Corp
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Filing: 1954-12-31
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Granted: 1958-06-10
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Expires: 1974-12-31
Abstract
No abstract record available.
Inventors
- 👤 Genung L Clapper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:04
CPC Classifications
G; G06; G06F; G06F5/00; G06F5/01; G06F5/017; H; H03; H03K; H03K17/00; H03K17/51; H03K17/54; H03K19/00; H03K19/02; H03K19/12; H03K5/00; H03K5/01; H03K5/04; H03K5/05; H03K5/13; H03K5/135; H04; H04N; H04N5/00; H04N5/04; H04N5/06; H04N5/067; H04N5/073
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) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |