US3053020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional coated abrasive belt and process of making the same
Assignee: Unifrax I LLC
•
Filing: 1959-04-21
•
Granted: 1962-09-11
•
Expires: 1979-04-21
Abstract
No abstract record available.
Inventors
- 👤 Edward W Bratton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:58
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/06; B24D11/001; B24D11/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1194494A
Cited
US2899288A
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US1009709A
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US1806208A
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US2059583A
Cited
US2225937A
Cited
US2672715A
Cited
US2723438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |