US2478000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot bearing detector and selfchecking electrical apparatus for the control thereof
Assignee: Hitachi Rail STS USA Inc
•
Filing: 1946-03-27
•
Granted: 1949-08-02
•
Expires: 1966-03-27
Abstract
No abstract record available.
Inventors
- 👤 Alfred B Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:31
CPC Classifications
B; B61; B61K; B61K9/00; B61K9/04; B61L; B61L1/00; B61L1/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2385487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |