US2742612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mode transformer
Assignee: Unisys Corp
•
Filing: 1950-10-24
•
Granted: 1956-04-17
•
Expires: 1970-10-24
Abstract
No abstract record available.
Inventors
- 👤 Seymour B Cohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:53
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01P5/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2106769A
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US2129669A
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US2281550A
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US2232179A
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US2412320A
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US2425345A
Cited
US2443612A
Cited
US2441598A
Cited
US2545472A
Cited
US2501335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |