Patent US2650605A successfully refreshed from Google Patents.
US1668475A
Expired / Lapsed
US
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Reenforced abrasive article and process of making the same
Assignee: RUBBER LATEX RES CORP
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Filing: 1922-11-18
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Granted: 1928-05-01
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Expires: 1942-11-18
Abstract
No abstract record available.
Inventors
- 👤 Wescott William Burton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:48
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; B24D3/22
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) | 1931-05-01 | 1931-10-31 | 1932-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-01 | 1935-10-31 | 1936-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-01 | 1939-10-31 | 1940-05-01 | $7700.00 | Window Closed / Lapsed |