US2865398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic brake bleeding check valve
Assignee: CORPA Inc
•
Filing: 1955-01-21
•
Granted: 1958-12-23
•
Expires: 1975-01-21
Abstract
No abstract record available.
Inventors
- 👤 William C Popovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:51
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/28; B60T11/30; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1429566A
Cited
US1786283A
Cited
US2009433A
Cited
US2240612A
Cited
US2256516A
Cited
US2611387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |