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US2919656A
Expired / Lapsed
US
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Ballast moving attachment for track tamping machines
Assignee: Individual
•
Filing: 1958-04-01
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Granted: 1960-01-05
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Expires: 1978-04-01
Abstract
No abstract record available.
Inventors
- 👤 Plasser Franz
- 👤 Theurer Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:17
CPC Classifications
E; E01; E01B; E01B27/00; E01B27/12; E01B27/13; E01B27/16; E01B27/02; E01B27/023; E01B27/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2358657A
Cited
US2640285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |