US3065311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic transducer
Assignee: International Business Machines Corp
•
Filing: 1958-09-15
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Granted: 1962-11-20
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Expires: 1978-09-15
Abstract
No abstract record available.
Inventors
- 👤 Kornei Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:37
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/29; G11B5/295; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49021; Y10T29/49032; Y10T29/49036; Y10T29/49041; Y10T29/49048; Y10T29/49055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR884881A
Cited
US2751440A
Cited
US2769036A
Cited
US2732275A
Cited
US2872530A
Cited
US3000078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |