US2895689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding mills
Assignee: Individual
•
Filing: 1956-04-19
•
Granted: 1959-07-21
•
Expires: 1976-04-19
Abstract
No abstract record available.
Inventors
- 👤 Edwards George Wilfred
- 👤 Sevin Roger Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:45
CPC Classifications
B; B02; B02C; B02C7/00; B02C7/11; B02C7/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB287318A
Cited
US1762241A
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US1795603A
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US1847967A
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US2144333A
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US2184903A
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US2212544A
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GB524998A
Cited
US2295473A
Cited
US2400382A
Cited
US2561043A
Cited
US2609995A
Cited
US2609150A
Cited
US2677504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |