Patent US1585833A successfully refreshed from Google Patents.
US1585833A
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US
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Variable-load device
Assignee: Westinghouse Air Brake Co
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Filing: 1924-07-23
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Granted: 1926-05-25
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Expires: 1944-07-23
Abstract
No abstract record available.
Inventors
- 👤 Sidney G Down
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:43
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/02; B60G17/04; Y; Y10; Y10S; Y10S267/00; Y10S267/01; Y10S280/00; Y10S280/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-05-24 | 1929-11-23 | 1930-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-05-24 | 1933-11-23 | 1934-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-05-24 | 1937-11-23 | 1938-05-25 | $7700.00 | Window Closed / Lapsed |