Patent US2899838A successfully refreshed from Google Patents.
US2899838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delayed action brake release s
Assignee: —
•
Filing: —
•
Granted: 1959-08-18
•
Expires: 1976-08-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:36
CPC Classifications
G; G05; G05G; G05G7/00; G05G7/02; G05G2700/00; G05G2700/12; G05G2700/16; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20672; Y10T74/20708; Y10T74/20714
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1402898A
Cited
US1654321A
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US1823695A
Cited
US2119638A
Cited
US2120362A
Cited
US2405956A
Cited
US2467557A
Cited
US2694945A
Cited
US2682178A
Cited
US2816456A
Cited
US2784770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |