Patent US4419990A successfully refreshed from Google Patents.
Patent US2593103A successfully refreshed from Google Patents.
US2593103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure control mechanism
Assignee: Bendix Westinghouse Automotive Air Brake Co
•
Filing: 1945-01-15
•
Granted: 1952-04-15
•
Expires: 1965-01-15
Abstract
No abstract record available.
Inventors
- 👤 Roger H Casler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:28
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/26; B60T13/36; B60T15/00; B60T15/02; B60T15/36; F; F16; F16K; F16K47/00; F16K47/01; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2557; Y10T137/7722; Y10T137/7837; Y10T137/7866
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2040580A
Cited
US2103725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |