Patent US2672009A successfully refreshed from Google Patents.
US2672009A
Expired / Lapsed
US
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Master cylinder for hydraulic brakes and other hydraulic installations
Assignee: Individual
•
Filing: 1949-05-25
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Granted: 1954-03-16
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Expires: 1969-05-25
Abstract
No abstract record available.
Inventors
- 👤 Hense Heinrich
- 👤 Pleines Adam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:06
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/16; B60T11/224; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US763833A
Cited
US2111310A
Cited
US2102834A
Cited
US2009105A
Cited
US2104735A
Cited
US2203082A
Cited
US2179201A
Cited
US2148231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |