US2942561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unit load freight car
Assignee: International Steel Co
•
Filing: 1956-11-01
•
Granted: 1960-06-28
•
Expires: 1976-11-01
Abstract
No abstract record available.
Inventors
- 👤 Frank E Cheshire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:13
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/001; B61D45/006; Y; Y10; Y10S; Y10S16/00; Y10S16/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US598136A
Cited
US2733671A
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US1011796A
Cited
US1900711A
Cited
US2021909A
Cited
US2082251A
Cited
US2583257A
Cited
US2730964A
Cited
US2786523A
Cited
US2769405A
Cited
US2707652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |