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Patent US3411139A successfully refreshed from Google Patents.
US3411139A
Expired / Lapsed
US
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Modular multi-computing data processing system
Assignee: Unisys Corp
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Filing: 1965-11-26
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Granted: 1968-11-12
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Expires: 1985-11-26
Abstract
No abstract record available.
Inventors
- 👤 John T Lynch
- 👤 Walter C Fresch
- 👤 Blair C Thompson
- 👤 Richard E Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:02
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/16; G06F13/00; G06F13/10; G06F13/12; G06F9/00; G06F9/06; G06F9/46; G06F9/461; G06F9/463
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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |