Patent US2560654A successfully refreshed from Google Patents.
US2560654A
Expired / Lapsed
US
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Device for dressing grinding wheels
Assignee: Thompson Grinder Co
•
Filing: 1948-12-14
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Granted: 1951-07-17
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Expires: 1968-12-14
Abstract
No abstract record available.
Inventors
- 👤 Lohutko Floryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:23
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/12; B24B53/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US469091A
Cited
US604569A
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DE518101C
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US943989A
Cited
GB499767A
Cited
US2195050A
Cited
US2156066A
Cited
US2380451A
Cited
US2435916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |