Patent US2443331A successfully refreshed from Google Patents.
US2443331A
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Brake equalizer
Assignee: Oliver Corp Japan
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Filing: 1945-06-04
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Granted: 1948-06-15
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Expires: 1965-06-04
Abstract
No abstract record available.
Inventors
- 👤 Milford D Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:59
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/04; B60T11/06; B60T7/00; B60T7/02; B60T7/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20189; Y10T74/20207; Y10T74/20213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1137166A
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US1420290A
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US1584358A
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DE440735C
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CH138251A
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US2287011A
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US2383690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |