US2847565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse gap detector
Assignee: International Business Machines Corp
•
Filing: 1954-12-31
•
Granted: 1958-08-12
•
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
2026-10-22 22:59
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2141343A
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US2153217A
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US2359447A
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US2589833A
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US2596167A
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US2629825A
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US2666135A
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US2506439A
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US2589465A
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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) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |