Patent US2415533A successfully refreshed from Google Patents.
US2415533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring suspension for vehicles
Assignee: ANTHONY J D ANNA
•
Filing: 1943-03-18
•
Granted: 1947-02-11
•
Expires: 1963-03-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Rainsford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:40
CPC Classifications
B; B60; B60G; B60G5/00; B60G5/04; B60G5/053
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1743892A
Cited
US1936834A
Cited
US1886349A
Cited
DE660794C
Cited
US2272572A
Cited
US2269728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-10 | 1950-08-12 | 1951-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-10 | 1954-08-12 | 1955-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-10 | 1958-08-12 | 1959-02-11 | $7700.00 | Window Closed / Lapsed |