US2567465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Box-stack spacer for freight cars
Assignee: Individual
•
Filing: 1945-04-09
•
Granted: 1951-09-11
•
Expires: 1965-04-09
Abstract
No abstract record available.
Inventors
- 👤 Roswell P Barbour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:26
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1646982A
Cited
US793374A
Cited
US1708413A
Cited
US1970781A
Cited
US2022325A
Cited
US2053638A
Cited
US2169677A
Cited
USRE22256E
Cited
US2279522A
Cited
US2341088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |