Patent US2536279A successfully refreshed from Google Patents.
US2536279A
Expired / Lapsed
US
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Holder for grinding lathe tool bits
Assignee: Individual
•
Filing: 1947-10-02
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Granted: 1951-01-02
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Expires: 1967-10-02
Abstract
No abstract record available.
Inventors
- 👤 Otto R Grube
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:42
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/06; B24B41/066; Y; Y10; Y10T; Y10T407/00; Y10T407/22; Y10T407/2272; Y10T407/28
Claims Analysis
Total Claims: 0
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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) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |