US3547229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk brake for railway vehicles
Assignee: Individual
•
Filing: 1968-11-15
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Granted: 1970-12-15
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Expires: 1988-11-15
Abstract
No abstract record available.
Inventors
- 👤 Hans Pollinger
- 👤 Lawrence J Lunghamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:38
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/228; B; B61; B61H; B61H15/00; B61H15/0007; B61H15/0014; B61H15/0028; B61H5/00; F16D55/224; F16D55/2245; F16D65/00; F16D65/14; F16D65/16; F16D65/18; F16D65/22; F16D65/38; F16D65/40; F16D65/52; F16D65/56; F16D65/567; F16D2121/00; F16D2121/14; F16D2125/00; F16D2125/18; F16D2125/58; F16D2125/64; F16D2125/66
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) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |