US2726490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Billet grinder
Assignee: Crucible Steel Company of America
•
Filing: 1952-04-01
•
Granted: 1955-12-13
•
Expires: 1972-04-01
Abstract
No abstract record available.
Inventors
- 👤 Wallace K Lowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:25
CPC Classifications
B; B24; B24B; B24B27/00; B24B27/033; B24B27/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB221029A
Cited
US1871992A
Cited
US2021066A
Cited
US2160378A
Cited
US2176486A
Cited
US2129049A
Cited
US2489453A
Cited
US2308842A
Cited
US2334023A
Cited
US2308843A
Cited
US2296064A
Cited
US2403341A
Cited
US2436466A
Cited
US2442042A
Cited
US2578531A
Cited
US2627210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |