US3033168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic mechanism
Assignee: New York Air Brake LLC
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Filing: 1960-10-31
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Granted: 1962-05-08
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Expires: 1980-10-31
Abstract
No abstract record available.
Inventors
- 👤 Charles A L Ruhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:23
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/024; E; E02; E02F; E02F9/00; E02F9/20; E02F9/22; F15B2011/0243; F15B2211/00; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/3056; F15B2211/30565; F15B2211/3058; F15B2211/31; F15B2211/3122; F15B2211/3127; F15B2211/315; F15B2211/3157; F15B2211/31576; F15B2211/80; F15B2211/86; F15B2211/8609
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |