Patent US3544966A successfully refreshed from Google Patents.
US3544966A
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US
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Method and apparatus for multiplex control of a plurality of peripheral devices for transfer of data with a central processing system
Assignee: International Business Machines Corp
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Filing: 1966-12-27
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Granted: 1970-12-01
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Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 John J Harmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:53
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/46; G06F9/48; G06F9/4806; G06F9/4812; G06F13/00; G06F13/10; G06F13/12; G06F13/122; G06F13/14; G06F13/20; G06F13/22; G06F15/00; G06F15/16; G06F9/22; G06F9/226; G06F9/26; G06F9/262; G06F9/268; H; H04; H04L; H04L5/00
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) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |