US1854486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for producing abrasive articles
Assignee: STEEL WOOL PAD Corp
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Filing: 1926-07-08
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Granted: 1932-04-19
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Expires: 1946-07-08
Abstract
No abstract record available.
Inventors
- 👤 James B Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:42
CPC Classifications
D; D05; D05B; D05B23/00; D05D; D05D2303/00; D05D2303/30; D05D2305/00; D05D2305/02; D05D2305/06
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) | 1935-04-19 | 1935-10-19 | 1936-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-04-19 | 1939-10-19 | 1940-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-04-19 | 1943-10-19 | 1944-04-19 | $7700.00 | Window Closed / Lapsed |