Patent US2618170A successfully refreshed from Google Patents.
US2618170A
Expired / Lapsed
US
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Hand brake for railway cars
Assignee: W H MINER Inc
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Filing: 1950-07-19
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Granted: 1952-11-18
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Expires: 1970-07-19
Abstract
No abstract record available.
Inventors
- 👤 Harry W Mulcahy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:39
CPC Classifications
B; B61; B61H; B61H13/00; B61H13/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19614; Y10T74/19623; Y10T74/19642; Y10T74/19698; Y10T74/19828; Y10T74/20; Y10T74/20396; Y10T74/20474; Y10T74/20486
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) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |