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US2986428A
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US
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Brake operating system
Assignee: ACF Industries Inc
•
Filing: 1957-11-15
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Granted: 1961-05-30
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Expires: 1977-11-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Clarence J Clements
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:21
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/58; B60T13/581; B60T13/24; B60T13/26; B60T13/40; B60T13/403; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20558
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1215949A
Cited
FR526789A
Cited
FR678154A
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US1986428A
Cited
US2126849A
Cited
US2260566A
Cited
US2758684A
Cited
US2738037A
Cited
US2884803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |