Patent US980397A successfully refreshed from Google Patents.
Patent US2196249A successfully refreshed from Google Patents.
US2196249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake beam support chair
Assignee: Chicago Railway Equipment Co
•
Filing: 1939-07-03
•
Granted: 1940-04-09
•
Expires: 1959-07-03
Abstract
No abstract record available.
Inventors
- 👤 Edwin G Busse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:53
CPC Classifications
B; B61; B61H; B61H13/00; B61H13/34; B61H13/36
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) | 1943-04-09 | 1943-10-09 | 1944-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-09 | 1947-10-09 | 1948-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-09 | 1951-10-09 | 1952-04-09 | $7700.00 | Window Closed / Lapsed |