US2697426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheel dresser
Assignee: Landis Tool Co
•
Filing: 1950-06-22
•
Granted: 1954-12-21
•
Expires: 1970-06-22
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Price
- 👤 Harold E Balsiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:52
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/06; B24B53/08; B24B53/081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US689845A
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US840876A
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US2150091A
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GB490776A
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US2248463A
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GB541801A
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US2340683A
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US2323401A
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US2292947A
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US2373187A
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US2465580A
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US2447478A
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US2458444A
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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) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |