Patent US3789292A successfully refreshed from Google Patents.
Patent US1074647A successfully refreshed from Google Patents.
Patent US1430259A successfully refreshed from Google Patents.
US1430259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spike and screw for rails
Assignee: Individual
•
Filing: 1920-01-26
•
Granted: 1922-09-26
•
Expires: 1940-01-26
Abstract
No abstract record available.
Inventors
- 👤 Radelet Fernand
- 👤 Bonnet Edmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:36
CPC Classifications
E; E01; E01B; E01B9/00; E01B9/02; E01B9/04; E01B9/10; Y; Y10; Y10S; Y10S411/00; Y10S411/923
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) | 1925-09-25 | 1926-03-27 | 1926-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-09-25 | 1930-03-27 | 1930-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-09-25 | 1934-03-27 | 1934-09-26 | $7700.00 | Window Closed / Lapsed |