Patent US2601140A successfully refreshed from Google Patents.
US2601140A
Expired / Lapsed
US
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Wheel slide indicating apparatus
Assignee: Westinghouse Air Brake Co
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Filing: 1950-01-25
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Granted: 1952-06-17
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Expires: 1970-01-25
Abstract
No abstract record available.
Inventors
- 👤 Claude M Hines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:54
CPC Classifications
B; B61; B61K; B61K9/00; B61K9/12; G; G01; G01P; G01P1/00; G01P1/07; G01P1/08; G01P1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2118483A
Cited
US2335984A
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US2333210A
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US2430125A
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US2472526A
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US2462655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |