US2968791A
Expired / Lapsed
US
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Buffer storage system
Assignee: International Business Machines Corp
•
Filing: 1956-05-21
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Granted: 1961-01-17
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Expires: 1976-05-21
Abstract
No abstract record available.
Inventors
- 👤 Ellsworth L Johnson
- 👤 Pasquale W Rocco
- 👤 Dan C Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:51
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/08; G06F11/10; G06F11/0703; G06F11/0751; G06F11/0754; G06F11/076; G06F13/00; G06F13/10; G06F13/12; G06F15/00; G06F15/16; H; H04; H04L; H04L12/00; H04L12/28; H04L12/40
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) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |