Patent US1980616A successfully refreshed from Google Patents.
US1980616A
Expired / Lapsed
US
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Cylinder for hydraulic brakes
Assignee: Continental Teves AG and Co OHG
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Filing: 1931-07-02
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Granted: 1934-11-13
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Expires: 1951-07-02
Abstract
No abstract record available.
Inventors
- 👤 Engel Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:27
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/14; F16D65/16; F16D65/22; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/2245; F16D2121/00; F16D2121/02; F16D2123/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-11-12 | 1938-05-14 | 1938-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-12 | 1942-05-14 | 1942-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-12 | 1946-05-14 | 1946-11-13 | $7700.00 | Window Closed / Lapsed |