US2996020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway car
Assignee: ACF Industries Inc
•
Filing: 1959-10-02
•
Granted: 1961-08-15
•
Expires: 1979-10-02
Abstract
No abstract record available.
Inventors
- 👤 Sigvald F Udstad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:22
CPC Classifications
B; B61; B61D; B61D3/00; B61D3/16; B61D3/18; B61D19/00; B61D19/001; B61D19/002; B61D19/003; B61D19/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US626535A
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DE346951C
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US1418634A
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US1519319A
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US1788667A
Cited
US2083553A
Cited
US2333441A
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US2320216A
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US2783718A
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US2756694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |