Patent US2965986A successfully refreshed from Google Patents.
US2965986A
Expired / Lapsed
US
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Ballast distributing apparatus for railroads
Assignee: Individual
•
Filing: 1958-03-17
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Granted: 1960-12-27
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Expires: 1978-03-17
Abstract
No abstract record available.
Inventors
- 👤 Royce G Kershaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:36
CPC Classifications
E; E01; E01B; E01B27/00; E01B27/02; E01B27/027; E01B27/023; E01B27/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |