Patent US3399384A successfully refreshed from Google Patents.
US3399384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable priority access system
Assignee: International Business Machines Corp
•
Filing: 1965-09-10
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Granted: 1968-08-27
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Expires: 1985-09-10
Abstract
No abstract record available.
Inventors
- 👤 Peter N Crockett
- 👤 Matthew A Krygowski
- 👤 Thomas S Stafford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:38
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/14; G06F13/20; G06F13/32; G06F13/34; G06F13/24; G06F13/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3333252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |