US3445822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication arrangement in data processing system
Assignee: International Business Machines Corp
•
Filing: 1967-07-14
•
Granted: 1969-05-20
•
Expires: 1987-07-14
Abstract
No abstract record available.
Inventors
- 👤 Graham C Driscoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:24
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/16; G06F15/161; G06F13/00; G06F13/14; G06F13/36; G06F13/368; G06F13/374
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2946986A
Cited
US3242467A
Cited
US3231862A
Cited
US3274554A
Cited
US3286240A
Cited
US3287705A
Cited
US3323109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |