Patent US4151375A successfully refreshed from Google Patents.
Patent US2039701A successfully refreshed from Google Patents.
US2039701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake controlling means
Assignee: Westinghouse Air Brake Co
•
Filing: 1934-12-01
•
Granted: 1936-05-05
•
Expires: 1954-12-01
Abstract
No abstract record available.
Inventors
- 👤 Rankin J Bush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:06
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-05-05 | 1939-11-04 | 1940-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-05 | 1943-11-04 | 1944-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-05 | 1947-11-04 | 1948-05-05 | $7700.00 | Window Closed / Lapsed |