US2944651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Unisys Corp
•
Filing: 1958-05-07
•
Granted: 1960-07-12
•
Expires: 1978-05-07
Abstract
No abstract record available.
Inventors
- 👤 Donald H Malcolm
- 👤 Donald W Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:59
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/36; B41J11/42; G; G06; G06F; G06F3/00; G06F3/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1951517A
Cited
US2584817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |