Patent US2868824A successfully refreshed from Google Patents.
Patent US1501157A successfully refreshed from Google Patents.
US1501157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric coupling for cars
Assignee: Westinghouse Air Brake Co
•
Filing: 1919-07-05
•
Granted: 1924-07-15
•
Expires: 1939-07-05
Abstract
No abstract record available.
Inventors
- 👤 Harry F Woernley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:21
CPC Classifications
B; B61; B61G; B61G5/00; B61G5/06; B61G5/10
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) | 1927-07-15 | 1928-01-14 | 1928-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-07-15 | 1932-01-14 | 1932-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-07-15 | 1936-01-14 | 1936-07-15 | $7700.00 | Window Closed / Lapsed |