Patent US2433953A successfully refreshed from Google Patents.
US2433953A
Expired / Lapsed
US
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Pressure booster for hydraulic brake systems
Assignee: Automatic Shifters Inc
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Filing: 1943-04-12
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Granted: 1948-01-06
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Expires: 1963-04-12
Abstract
No abstract record available.
Inventors
- 👤 Jeannot G Ingres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:42
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/241; B60T13/242; B60T13/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1962857A
Cited
US2074730A
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US2306346A
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US2236415A
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US2252482A
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US2191318A
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GB514917A
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US2260490A
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US2353755A
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US2318756A
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US2332340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |