Patent US2996256A successfully refreshed from Google Patents.
US2996256A
Expired / Lapsed
US
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Traction rail anchors
Assignee: Railroad Rubber Products Inc
•
Filing: 1952-08-29
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Granted: 1961-08-15
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Expires: 1972-08-29
Abstract
No abstract record available.
Inventors
- 👤 Nelson K Moses
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:02
CPC Classifications
E; E01; E01B; E01B9/00; E01B9/68; E01B9/685; E01B9/686
Claims Analysis
Total Claims: 0
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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) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |