Patent US2671535A successfully refreshed from Google Patents.
US2671535A
Expired / Lapsed
US
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Brake shoe return spring
Assignee: Bendix Aviation Corp
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Filing: 1948-03-05
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Granted: 1954-03-09
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Expires: 1968-03-05
Abstract
No abstract record available.
Inventors
- 👤 Bryan E House
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:05
CPC Classifications
F; F16; F16D; F16D51/00; F16D51/16; F16D51/18; F16D51/26; F16D51/30; F16D65/00; F16D65/02; F16D65/04; F16D65/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1353914A
Cited
US1417069A
Cited
GB252474A
Cited
US1693444A
Cited
GB574103A
Cited
US2475491A
Cited
US2595143A
Cited
US2516995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |