US2983085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rail grinding apparatus
Assignee: Individual
•
Filing: 1959-09-01
•
Granted: 1961-05-09
•
Expires: 1979-09-01
Abstract
No abstract record available.
Inventors
- 👤 Sr William M Lutts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:20
CPC Classifications
E; E01; E01B; E01B31/00; E01B31/02; E01B31/12; E01B31/17; B; B32; B32B; B32B15/00; B32B15/01
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) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |