Patent US2593374A successfully refreshed from Google Patents.
US2593374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drop forged and welded brake head
Assignee: American Steel Foundries
•
Filing: 1948-06-08
•
Granted: 1952-04-15
•
Expires: 1968-06-08
Abstract
No abstract record available.
Inventors
- 👤 Loren L Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:49
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/04; F16D65/06; F16D65/062
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE198633C
Cited
US867183A
Cited
US868970A
Cited
US1079001A
Cited
US1475286A
Cited
US1727874A
Cited
US1972212A
Cited
US2077551A
Cited
US2148257A
Cited
US2283637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |