US2546367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic braking system with power parking valve
Assignee: WARNER AIRCRAFT CORP
•
Filing: 1944-11-27
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Granted: 1951-03-27
•
Expires: 1964-11-27
Abstract
No abstract record available.
Inventors
- 👤 Ludwig A Majneri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:50
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; B60T13/14; B60T13/142; B60T13/147; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7748; Y10T137/7753; Y10T137/7781; Y10T137/7793; Y10T137/7832
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US180460A
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US2148268A
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US2167328A
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US2185277A
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US2200829A
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US2343809A
Cited
US2331214A
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US2367194A
Cited
US2408799A
Cited
US2389667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |