Patent US2069116A successfully refreshed from Google Patents.
US2069116A
Expired / Lapsed
US
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Composite grinding wheel and method of making the same
Assignee: Saint Gobain Abrasives Inc
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Filing: 1935-02-14
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Granted: 1937-01-26
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Expires: 1955-02-14
Abstract
No abstract record available.
Inventors
- 👤 Sanford Baalis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:52
CPC Classifications
B; B24; B24D; B24D5/00; B24D5/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-01-26 | 1940-07-27 | 1941-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-26 | 1944-07-27 | 1945-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-26 | 1948-07-27 | 1949-01-26 | $7700.00 | Window Closed / Lapsed |