Patent US2805525A successfully refreshed from Google Patents.
US2805525A
Expired / Lapsed
US
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Grinding machine utilizing abrasive discs
Assignee: Besly Cutting Tools Inc
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Filing: 1955-03-30
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Granted: 1957-09-10
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Expires: 1975-03-30
Abstract
No abstract record available.
Inventors
- 👤 Sidney M Napp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:14
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/10; B24B7/16; B24B7/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1371854A
Cited
US1610984A
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US1978674A
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US1992452A
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US1870328A
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US2238859A
Cited
US2580542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |