US2162604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Securing of rail-chairs to sleepers
Assignee: Individual
•
Filing: 1937-09-29
•
Granted: 1939-06-13
•
Expires: 1957-09-29
Abstract
No abstract record available.
Inventors
- 👤 Clow Alfred Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:59
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/14; F16B13/141; E; E01; E01B; E01B31/00; E01B31/20; E01B31/26; E01B9/00; E01B9/02; E01B9/04; E01B9/14; E01B9/16; F16B2013/147
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1942-06-12 | 1942-12-12 | 1943-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-12 | 1946-12-12 | 1947-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-12 | 1950-12-12 | 1951-06-13 | $7700.00 | Window Closed / Lapsed |