US2684458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reel motor control system
Assignee: Westinghouse Electric Corp
•
Filing: 1949-06-28
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Granted: 1954-07-20
•
Expires: 1969-06-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Amos J Winchester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:54
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/48; B21B37/52; B21B37/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2264277A
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US2339939A
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US2342790A
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US2432876A
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US2437973A
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US2451901A
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US2454183A
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US2444248A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |