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US3072260A
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Assignee: ACF Industries Inc
•
Filing: 1958-07-02
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Granted: 1963-01-08
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Expires: 1978-07-02
Abstract
No abstract record available.
Inventors
- 👤 Alex N Szwargulski
- 👤 Russell F Smith
- 👤 Edgar W Niemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:47
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/31; B01D29/33; B01D35/00; B01D35/06; B01D35/14; B01D35/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US328222A
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US1362998A
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US1896310A
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US2201837A
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US2371891A
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US2427320A
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US2598818A
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US2629393A
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US2793752A
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US2795333A
Cited
US2897835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |