US3220810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flap-type abrasive wheel
Assignee: Merit Products Inc
•
Filing: 1962-05-03
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Granted: 1965-11-30
•
Expires: 1982-05-03
Abstract
No abstract record available.
Inventors
- 👤 Block Aleck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:28
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/02; B24D13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A METHOD OF PRODUCING AN ABRASIVE WHEEL, INCLUDING THE STEPS OF: PRODUCING A CONCENTRIC GROOVE IN AT LEAST ONE SIDE OF A PLURALITY OF LEAVES DISPOSED IN AN ANNULAR ARRAY, FILLING THE CONCENTRIC GROOVE WITH A VISCOUS ADHESIVE MATERIAL, INSERTING AN ANNULAR RING INTO THE GROOVE BEFORE THE ADHESIVE MATERIAL HAS BECOME HARDENED WHERE THE RING HAS PARTICULAR DIMENSIONS, AND REMOVING THE ANNULAR RING FROM THE GROOVE TO DEFINE THE PARTICULAR DIMENSIONS FOR THE GROOVE.
Claim 2
Independent Claim
75 words
A METHOD OF PRODUCING AN ABRASIVE WHEEL, INCLUDING THE STEPS OF: PRODUCING A CONCENTRIC GROOVE IN AT LEAST ONE SIDE OF A PLURALITY OF LEAVES DISPOSED IN AN ANNULAR ARRAY, FILLING THE CONCENTRIC GROOVE WITH A VISCOUS ADHESIVE MATERIAL, INSERTING AN ANNULAR RING INTO THE GROOVE BEFORE THE ADHESIVE MATERIAL HAS BECOME HARDENED WHERE THE RING HAS PARTICULAR DIMENSIONS, AND REMOVING THE ANNULAR RING FROM THE GROOVE TO DEFINE THE PARTICULAR DIMENSIONS FOR THE GROOVE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |