US2748761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheel tools
Assignee: Individual
•
Filing: 1952-04-01
•
Granted: 1956-06-05
•
Expires: 1972-04-01
Abstract
No abstract record available.
Inventors
- 👤 Hubbard H Winegar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:45
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US354690A
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US1320462A
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US2355324A
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US1227398A
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US1293048A
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US1357814A
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US1473520A
Cited
US1772345A
Cited
US1775124A
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US2344385A
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US2437599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |