US2566968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alarm apparatus for hot journal bearings and like hazards
Assignee: Hitachi Rail STS USA Inc
•
Filing: 1945-05-24
•
Granted: 1951-09-04
•
Expires: 1965-05-24
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Sorensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:46
CPC Classifications
B; B61; B61L; B61L1/00; B61L1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1677816A
Cited
US2064639A
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US2089824A
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US2090088A
Cited
US2297172A
Cited
US2408660A
Cited
US2420968A
Cited
US2456871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |