US3441908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data storage system
Assignee: International Business Machines Corp
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Filing: 1965-06-18
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Granted: 1969-04-29
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Expires: 1985-06-18
Abstract
No abstract record available.
Inventors
- 👤 John V Mizzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:22
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/76; G06F7/78; G06F5/00; G06F5/06; G09; G09G; G09G5/00; G09G5/22; G09G5/24
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) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |