Patent US2583552A successfully refreshed from Google Patents.
US2583552A
Expired / Lapsed
US
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Motor control circuit mixer
Assignee: Unisys Corp
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Filing: 1944-04-29
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Granted: 1952-01-29
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Expires: 1964-04-29
Abstract
No abstract record available.
Inventors
- 👤 Robert S Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:39
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/121; G05D3/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2270295A
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US2256085A
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US2288600A
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US2399695A
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US2330109A
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US2296107A
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US2431832A
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US2425600A
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US2464249A
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US2478203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |