Patent US2501108A successfully refreshed from Google Patents.
US2501108A
Expired / Lapsed
US
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Hydraulic brake master cylinder
Assignee: American Motors Corp
•
Filing: 1944-11-02
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Granted: 1950-03-21
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Expires: 1964-11-02
Abstract
No abstract record available.
Inventors
- 👤 Wahlberg Nils Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:36
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/16; B60T11/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US433618A
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US1474192A
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US2203082A
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US2077748A
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GB438615A
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US2152485A
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US2150617A
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US2166742A
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US2222848A
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US2211651A
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US2218700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |