US2715799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding device
Assignee: Ammco Tools Inc
•
Filing: 1950-08-19
•
Granted: 1955-08-23
•
Expires: 1970-08-19
Abstract
No abstract record available.
Inventors
- 👤 Billeter Henry Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:10
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/26; B24B19/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US272304A
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US804793A
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US1156292A
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US2118003A
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US2304530A
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US2345161A
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US2392667A
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US2577534A
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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) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |