US3274559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for transferring data
Assignee: International Business Machines Corp
•
Filing: 1961-12-04
•
Granted: 1966-09-20
•
Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Paul H Giroux
- 👤 Robert J Urquhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:17
CPC Classifications
G; G06; G06F; G06F5/00; G06F5/06; G06F5/08; G06F5/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3024993A
Cited
US3013254A
Cited
US2978680A
Cited
US3122726A
Cited
US3064241A
Cited
US3144638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |