US2068639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical rail bond
Assignee: DELTA STAR ELECTRIC CO
•
Filing: 1930-05-03
•
Granted: 1937-01-26
•
Expires: 1950-05-03
Abstract
No abstract record available.
Inventors
- 👤 Alsaker Alfred
- 👤 Rah Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:35
CPC Classifications
B; B60; B60M; B60M5/00; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4966; Y10T403/4991
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) | 1940-01-26 | 1940-07-27 | 1941-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-26 | 1944-07-27 | 1945-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-26 | 1948-07-27 | 1949-01-26 | $7700.00 | Window Closed / Lapsed |