US2634556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheel trueing device
Assignee: Maag Zahnrader und Maschinen AG
•
Filing: 1947-02-18
•
Granted: 1953-04-14
•
Expires: 1967-02-18
Abstract
No abstract record available.
Inventors
- 👤 Aeppli Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:55
CPC Classifications
B; B23; B23F; B23F23/00; B23F23/12; B23F23/1225; B24; B24B; B24B53/00; B24B53/06; B24B53/08; B24B53/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US672557A
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US1228798A
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US1819091A
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US1841809A
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US1901236A
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US1882814A
Cited
US1934601A
Cited
US2192308A
Cited
US2145310A
Cited
US2395544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |