Patent US2919429A successfully refreshed from Google Patents.
US2919429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data transfer mechanism
Assignee: International Business Machines Corp
•
Filing: 1954-10-25
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Granted: 1959-12-29
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Expires: 1974-10-25
Abstract
No abstract record available.
Inventors
- 👤 Francis E Hamilton
- 👤 Jr Ernest S Hughes
- 👤 Charles B Smith
- 👤 Archie L Furr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:09
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/06; G06F3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2576099A
Cited
US2617704A
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US2518022A
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US2767908A
Cited
US2693593A
Cited
US2685084A
Cited
US2739299A
Cited
US2702380A
Cited
US2708267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |