US2035998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated panel
Assignee: Hitachi Rail STS USA Inc
•
Filing: 1929-12-12
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Granted: 1936-03-31
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Expires: 1949-12-12
Abstract
No abstract record available.
Inventors
- 👤 Howard A Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:39
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/06; B61L25/08; Y; Y10; Y10S; Y10S116/00; Y10S116/05; Y10S200/00; Y10S200/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-03-31 | 1939-09-30 | 1940-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-03-31 | 1943-09-30 | 1944-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-03-31 | 1947-09-30 | 1948-03-31 | $7700.00 | Window Closed / Lapsed |