US2780408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic accumulator
Assignee: Unisys Corp
•
Filing: 1951-06-22
•
Granted: 1957-02-05
•
Expires: 1971-06-22
Abstract
No abstract record available.
Inventors
- 👤 Loring P Crosman
- 👤 Francis B Hannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/498; G06F7/4981
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2514035A
Cited
US2484115A
Cited
US2624507A
Cited
US2536917A
Cited
US2562591A
Cited
US2703202A
Cited
US2626752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |