US2424936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Car truck
Assignee: American Steel Foundries
•
Filing: 1943-09-23
•
Granted: 1947-07-29
•
Expires: 1963-09-23
Abstract
No abstract record available.
Inventors
- 👤 David M Light
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:31
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/04; B61F5/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1374671A
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US1808839A
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US2053989A
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US1812723A
Cited
US2059963A
Cited
US2118006A
Cited
US2169715A
Cited
US2257109A
Cited
US2237953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-28 | 1951-01-27 | 1951-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-28 | 1955-01-27 | 1955-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-28 | 1959-01-27 | 1959-07-29 | $7700.00 | Window Closed / Lapsed |