US2853357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse packing system for magnetic recording of binary coded information
Assignee: JOHN T POTTER
•
Filing: 1951-01-19
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Granted: 1958-09-23
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Expires: 1971-01-19
Abstract
No abstract record available.
Inventors
- 👤 Alfred W Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:18
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B20/14; G11B20/1488; G11B20/1492
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2397604A
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US2452547A
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US2436512A
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US2536816A
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US2540654A
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US2575342A
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US2607035A
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US2633564A
Cited
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 |