US2565706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral roof sheet and hatch frame
Assignee: Standard Railway Equipment Manufacturing Co
•
Filing: 1949-10-26
•
Granted: 1951-08-28
•
Expires: 1969-10-26
Abstract
No abstract record available.
Inventors
- 👤 Alfred L Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/12; B61D17/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1018041A
Cited
US2011816A
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US2238700A
Cited
US2239033A
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US2308468A
Cited
US2316265A
Cited
US2333879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |