US2743559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive bands
Assignee: Bay State Abrasive Products Co
•
Filing: 1953-04-10
•
Granted: 1956-05-01
•
Expires: 1973-04-10
Abstract
No abstract record available.
Inventors
- 👤 Albert L Ball
- 👤 Stanley E Lull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:12
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2071563A
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US2137305A
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US2138882A
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US2189754A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |