Patent US2445294A successfully refreshed from Google Patents.
US2445294A
Expired / Lapsed
US
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Cooling apparatus for treating cutting tools
Assignee: Super-Treat Inc
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Filing: 1945-03-03
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Granted: 1948-07-13
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Expires: 1965-03-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:59
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/62; C21D1/63; C21D1/56; C21D9/00; C21D9/22; C21D6/00; C21D6/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |