US2493686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rail anchor
Assignee: Poor and Co
•
Filing: 1945-12-18
•
Granted: 1950-01-03
•
Expires: 1965-12-18
Abstract
No abstract record available.
Inventors
- 👤 George L Moore
- 👤 James R Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:34
CPC Classifications
E; E01; E01B; E01B13/00; E01B13/02; E01B2201/00; E01B2201/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |