US3478321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable priority storage accessing control
Assignee: International Business Machines Corp
•
Filing: 1966-11-10
•
Granted: 1969-11-11
•
Expires: 1986-11-10
Abstract
No abstract record available.
Inventors
- 👤 James C Cooper
- 👤 Lewis E King
- 👤 Olin L Macsorley
- 👤 William P Wissick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:23
CPC Classifications
G; G06; G06F; G06F12/00; G06F12/02; G06F12/08; G06F13/00; G06F13/14; G06F13/16; G06F13/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3158844A
Cited
USRE26087E
Cited
US3242467A
Cited
US3283306A
Cited
US3377579A
Cited
US3395398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |