US2677503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rail anticreeper
Assignee: Individual
•
Filing: 1950-01-21
•
Granted: 1954-05-04
•
Expires: 1970-01-21
Abstract
No abstract record available.
Inventors
- 👤 John A Bodkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:50
CPC Classifications
E; E01; E01B; E01B13/00; E01B13/02; E01B2201/00; E01B2201/04; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44573; Y10T24/4459; Y10T24/44598
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US135052A
Cited
US844382A
Cited
US790694A
Cited
US1379384A
Cited
US1540957A
Cited
US1912357A
Cited
US2529173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |