US2611546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liner construction for grinding mills
Assignee: KENSINGTON STEEL Co
•
Filing: 1949-11-15
•
Granted: 1952-09-23
•
Expires: 1969-11-15
Abstract
No abstract record available.
Inventors
- 👤 Posselt Ejnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:31
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/18; B02C17/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US780900A
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US851637A
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US1207174A
Cited
US1457487A
Cited
US1872036A
Cited
US1986530A
Cited
US2465607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |