US2417385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad plate with spikes
Assignee: Individual
•
Filing: 1944-07-07
•
Granted: 1947-03-11
•
Expires: 1964-07-07
Abstract
No abstract record available.
Inventors
- 👤 Henry L Tilly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:27
CPC Classifications
E; E01; E01B; E01B9/00; E01B9/02; E01B9/04; E01B9/06; E01B9/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1927389A
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US2050432A
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US2357629A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-10 | 1950-09-09 | 1951-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-10 | 1954-09-09 | 1955-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-10 | 1958-09-09 | 1959-03-11 | $7700.00 | Window Closed / Lapsed |