US2515210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for grinding concentrically to a predetermined center in a centerless grinding machine
Assignee: Individual
•
Filing: 1946-06-01
•
Granted: 1950-07-18
•
Expires: 1966-06-01
Abstract
No abstract record available.
Inventors
- 👤 Waldo L Garberding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:58
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/18; B24B5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1893837A
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US1791442A
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US1891663A
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US1983853A
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US1919144A
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US2116031A
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US2144095A
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US2278264A
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US2281817A
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US2242978A
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US2345308A
Cited
GB559604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |