US2658313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: Individual
•
Filing: 1949-11-23
•
Granted: 1953-11-10
•
Expires: 1969-11-23
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Bowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:50
CPC Classifications
B; B24; B24B; B24B27/00; B24B27/0046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1326091A
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US1717345A
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US1888710A
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US1873751A
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US1905651A
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GB362750A
Cited
US2259870A
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US2297078A
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US2260635A
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US2345986A
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US2414560A
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US2435622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |