Patent US2525461A successfully refreshed from Google Patents.
US2525461A
Expired / Lapsed
US
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Air released spring set brake control
Assignee: Wagner Electric Corp
•
Filing: 1946-02-08
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Granted: 1950-10-10
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Expires: 1966-02-08
Abstract
No abstract record available.
Inventors
- 👤 Schnell Steve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:53
CPC Classifications
F; F16; F16D; F16D49/00; F16D49/16; F16D2121/00; F16D2121/02; F16D2121/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1659203A
Cited
US1794461A
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US2065820A
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US2215356A
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US2288912A
Cited
US2336887A
Cited
US2270431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |