US2819563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Billet grinder
Assignee: Crucible Steel Company of America
•
Filing: 1953-12-07
•
Granted: 1958-01-14
•
Expires: 1973-12-07
Abstract
No abstract record available.
Inventors
- 👤 Wallace K Lowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:21
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |