Patent US2451371A successfully refreshed from Google Patents.
US2451371A
Expired / Lapsed
US
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Cutting toolholding means for machine tools
Assignee: BRECK Co
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Filing: 1943-07-28
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Granted: 1948-10-12
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Expires: 1963-07-28
Abstract
No abstract record available.
Inventors
- 👤 John A Backstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:33
CPC Classifications
B; B23; B23D; B23D13/00; Y; Y10; Y10T; Y10T409/00; Y10T409/50; Y10T409/509348; Y10T409/509676; Y10T409/50984
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US581458A
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US1806696A
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US828425A
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GB173852A
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US1466062A
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US1688177A
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GB330202A
Cited
US2090508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |