US2715550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank car for pulverulent materials
Assignee: ACF Industries Inc
•
Filing: 1950-06-07
•
Granted: 1955-08-16
•
Expires: 1970-06-07
Abstract
No abstract record available.
Inventors
- 👤 Robert A Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:11
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/22; B60P3/224; B29; B29C; B29C48/00; B29C48/03; B29C48/25; B29C48/285; B29C48/286; B29C48/288
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1240409A
Cited
US1339977A
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FR602067A
Cited
GB325544A
Cited
FR708557A
Cited
US2108416A
Cited
US2115023A
Cited
US2174348A
Cited
US2460546A
Cited
US2580215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |