US2927608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve for regulating brake applying pressure
Assignee: Individual
•
Filing: 1954-12-15
•
Granted: 1960-03-08
•
Expires: 1974-12-15
Abstract
No abstract record available.
Inventors
- 👤 David F Jenkins
- 👤 Martin C Klatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:13
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; B60T13/14; B60T13/141; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86919; Y10T137/87169; Y10T137/87233; Y10T137/87917; Y10T137/88054
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2069540A
Cited
FR781222A
Cited
US2137954A
Cited
US2173940A
Cited
US2231331A
Cited
US2671463A
Cited
US2656014A
Cited
US2812218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |