Patent US2448256A successfully refreshed from Google Patents.
US2448256A
Expired / Lapsed
US
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Electronic motor control for printing presses and the like
Assignee: Cutler Hammer Inc
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Filing: 1945-04-09
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Granted: 1948-08-31
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Expires: 1965-04-09
Abstract
No abstract record available.
Inventors
- 👤 William H Elliot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:32
CPC Classifications
H; H02; H02P; H02P25/00; H02P25/16; H02P25/32; H02P25/325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-31 | 1952-03-01 | 1952-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-31 | 1956-03-01 | 1956-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-31 | 1960-03-01 | 1960-08-31 | $7700.00 | Window Closed / Lapsed |