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Patent US2847828A successfully refreshed from Google Patents.
US2847828A
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US
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Brake booster
Assignee: BARNEY M GREENBERG
•
Filing: 1955-12-05
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Granted: 1958-08-19
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Expires: 1975-12-05
Abstract
No abstract record available.
Inventors
- 👤 Gilbert E Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:10
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)
US2260491A
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US2377699A
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US2450160A
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US2407856A
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US2415035A
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US2438723A
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US2448981A
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US2672015A
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US2680349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |