US2459394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid pressure brake mechanism
Assignee: Individual
•
Filing: 1944-06-07
•
Granted: 1949-01-18
•
Expires: 1964-06-07
Abstract
No abstract record available.
Inventors
- 👤 Charles A Sawtelle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:50
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/16; B60T11/20; B60T11/203; B60T11/206; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1786912A
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GB342802A
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US1925727A
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US1955180A
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US2080687A
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US2131459A
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US2145704A
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US2160074A
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US2141358A
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US2319368A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |