Patent US4912618A successfully refreshed from Google Patents.
US2494818A
Expired / Lapsed
US
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Expansible rimmed abrading wheel
Assignee: BATA NARODNI PODNIK
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Filing: 1948-05-07
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Granted: 1950-01-17
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Expires: 1968-05-07
Abstract
No abstract record available.
Inventors
- 👤 Kristek Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:32
CPC Classifications
B; B24; B24D; B24D9/00; B24D9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR385147A
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US1186058A
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GB430687A
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US2072129A
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GB475476A
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US2116272A
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US2221173A
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US2236709A
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US2377880A
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US2432731A
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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) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |