US837474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door-sill for railway-cars.
Assignee: Individual
•
Filing: 1906-01-05
•
Granted: 1906-12-04
•
Expires: 1926-01-05
Abstract
No abstract record available.
Inventors
- 👤 William O Jewell
- 👤 Frank H Jewell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:29
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/70
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) | 1909-12-03 | 1910-06-04 | 1910-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-12-03 | 1914-06-04 | 1914-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-12-03 | 1918-06-04 | 1918-12-04 | $7700.00 | Window Closed / Lapsed |