US2622903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Head-of-rail bond
Assignee: RAILROAD ACCESSORIES CORP
•
Filing: 1949-09-09
•
Granted: 1952-12-23
•
Expires: 1969-09-09
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Lavarack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:35
CPC Classifications
B; B60; B60M; B60M5/00; F; F16; F16B; F16B2200/00; F16B2200/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49938; Y10T403/00; Y10T403/49; Y10T403/4983
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US470820A
Cited
US1585327A
Cited
US2180318A
Cited
US2197793A
Cited
US2311874A
Cited
US2498114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |