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Patent US2742595A successfully refreshed from Google Patents.
US2742595A
Expired / Lapsed
US
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Control circuits
Assignee: Unisys Corp
•
Filing: 1952-12-08
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Granted: 1956-04-17
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Expires: 1972-12-08
Abstract
No abstract record available.
Inventors
- 👤 Gross Isadore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:58
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/02; H02H3/04; H02H3/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1134752A
Cited
US1775658A
Cited
US1816913A
Cited
US2147012A
Cited
US2691889A
Cited
US2607831A
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 |