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US2858649A
Expired / Lapsed
US
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Radius-grinding apparatus
Assignee: Individual
•
Filing: 1955-08-30
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Granted: 1958-11-04
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Expires: 1975-08-30
Abstract
No abstract record available.
Inventors
- 👤 Scheubeck Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:31
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US727981A
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US766978A
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US838250A
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US1281512A
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US1596727A
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US1836482A
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US2224959A
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US2396281A
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US2436873A
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US2552164A
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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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |