Patent US2776734A successfully refreshed from Google Patents.
US2776734A
Expired / Lapsed
US
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Hydraulic brake system
Assignee: Individual
•
Filing: 1952-01-24
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Granted: 1957-01-08
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Expires: 1972-01-24
Abstract
No abstract record available.
Inventors
- 👤 Hackett Norman Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:02
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1444984A
Cited
US2092364A
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US2203908A
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US2067697A
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US2254890A
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US2332301A
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US2365557A
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GB629247A
Cited
US2394343A
Cited
US2493196A
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US2539538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |