US2673292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle reporting system
Assignee: Westinghouse Air Brake Co
•
Filing: 1949-07-16
•
Granted: 1954-03-23
•
Expires: 1969-07-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard W Treharne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:41
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/02; B61L25/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1512288A
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US1517549A
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US1708524A
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US1870181A
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US1797651A
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US2122358A
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US2537298A
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US2554056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |