US2389464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preventing deterioration in rail fastenings and the like
Assignee: Individual
•
Filing: 1943-10-16
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Granted: 1945-11-20
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Expires: 1963-10-16
Abstract
No abstract record available.
Inventors
- 👤 Snyder Jacob Rush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:34
CPC Classifications
F; F16; F16B; F16B33/00; F16B33/008; E; E01; E01B; E01B9/00; E01B9/02; E01B9/04; E01B9/14; E01B9/16; F16B13/00; F16B13/14; F16B13/141
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) | 1948-11-19 | 1949-05-21 | 1949-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-11-19 | 1953-05-21 | 1953-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-11-19 | 1957-05-21 | 1957-11-20 | $7700.00 | Window Closed / Lapsed |