US3377579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural channel priority control
Assignee: International Business Machines Corp
•
Filing: 1967-01-13
•
Granted: 1968-04-09
•
Expires: 1987-01-13
Abstract
No abstract record available.
Inventors
- 👤 William P Wissick
- 👤 Gladys M Litz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:59
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/14; G06F13/16; G06F13/18; G06F13/10; G06F13/12; G06F13/122; G06F15/00; G06F15/76; G06F15/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3025498A
Cited
US3099818A
Cited
US3158844A
Cited
US3154771A
Cited
US3231865A
Cited
US3309671A
Cited
US3283306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |