Patent US3719006A successfully refreshed from Google Patents.
US3719006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skate sharpening machine
Assignee: Individual
•
Filing: 1970-08-03
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Granted: 1973-03-06
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Expires: 1990-08-03
Abstract
Abstract A SKATE SHARPENING MACHINE INCLUDING A HOUSING AND MEANS FOR CLAMPING THE BLADE OF THE SKATE ATA FIXED POSITION ON THE HOUSING. A CARRIAGE IS SLIDABLY MOUNTED IN THE HOUSING AND CARRIES A POWER-DRIVEN GRINDER. THE CARRIAGE ISARRANGED TO BE MOVED BACK AND FORTH IN THE HOUSING AND GUIDE MEANS CONFORMING TO THE SHAPE OF THE BOTTOM OF THE BLADE ARE PROVIDED FOR GUIDING THE GRINDER WHEREBY THE GRINDER FOLLOWS THE SHAPE OF THE BOTTOM OF THE BLADE WHEN MOVED BACK AND FORTH BY THE CARRIAGE. D R A W I N G
Inventors
- 👤 R Vezeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:20
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |