Patent US3013870A successfully refreshed from Google Patents.
US3013870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of abrasive belts and coated fabrics therefor
Assignee: Individual
•
Filing: 1958-06-30
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Granted: 1961-12-19
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Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 Ackerman Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:22
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/001; B24D11/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
AN ABRASIVE BELT COMPRISING A STRIP OF FABRIC HAVING ABRASIVE GRIT BONDED TO ITS OUTER SURFACE, THE OPPOSITE SIDE OF SAID STRIP HAVING A GLUE SIZE THEREON CONTAINING FLAKY GROUND OYSTER SHELL PARTICLES HAVING AN AVERAGE PARTICLE SIZE OF ABOUT ONE AND ONE-HALF TO SEVEN MICRONS, SAID GROUND OYSTER SHELL PARTICLES BEING PRESENT IN AN AMOUNT OF ABOUT ONE TO THREE PARTS BY WEIGHT TO ABOUT ONE PART OF DRY GLUE BY WEIGHT AND FILLING THE INTERSTICES OF SAID FABRIC, ONE END OF SAID STRIP BEING FREE OF SAID ABRASIVE GRIT AND BEING GLUED DIRECTLY TO THE SIDE OF THE FABRIC HAVING THE GLUE SIZE THEREON IN OVERLAPPING RELATION THEREON.
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) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |