Patent US2434041A successfully refreshed from Google Patents.
US2434041A
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US
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Annunciating and indicating apparatus
Assignee: Hitachi Rail STS USA Inc
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Filing: 1944-09-28
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Granted: 1948-01-06
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Expires: 1964-09-28
Abstract
No abstract record available.
Inventors
- 👤 James M Hesser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:08
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/06; B61L25/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2355327A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |