US2973722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle with centering device
Assignee: ACF Industries Inc
•
Filing: 1957-01-24
•
Granted: 1961-03-07
•
Expires: 1977-01-24
Abstract
No abstract record available.
Inventors
- 👤 Sigvald F Udstad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:38
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/26; B61F5/30; B61F5/32; B61F5/325; B61F5/02; B61F5/22; B61F5/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US998519A
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US2080180A
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US2210241A
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US2244502A
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US2127518A
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US2299576A
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CH264180A
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US2557354A
Cited
US2746502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |