Patent US2482471A successfully refreshed from Google Patents.
US2482471A
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Adjustable coupling device
Assignee: Westinghouse Electric Corp
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Filing: 1948-04-13
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Granted: 1949-09-20
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Expires: 1968-04-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Dowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:12
CPC Classifications
H; H01; H01F; H01F21/00; H01F21/02; H01F21/06; H03; H03C; H03C1/00; H03C1/52; H03C1/54; H04; H04M; H04M1/00; H04M1/02
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) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |