US2473714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rail truck suspension
Assignee: Goodrich Corp
•
Filing: 1945-07-03
•
Granted: 1949-06-21
•
Expires: 1965-07-03
Abstract
No abstract record available.
Inventors
- 👤 Alvin S Krotz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:17
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/50; B61F5/52; B61F3/00; B61F3/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB443622A
Cited
US2166769A
Cited
US2149297A
Cited
US2191211A
Cited
US2251950A
Cited
US2253042A
Cited
US2320086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |