Patent US3570332A successfully refreshed from Google Patents.
US3570332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of machining super-tough metals
Assignee: Sanders Nuclear Corp
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Filing: 1967-12-18
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Granted: 1971-03-16
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Expires: 1987-12-18
Abstract
Abstract THE INVENTION DISCLOSED HEREIN RELATED TO METAL WORKING PROCESSES AND MORE PARTICULARLY TO A NEW AND NOVEL METHOD AND APPARATUS FOR THE MACHINING OF SUPER ALLOYS AND REFRACTORY METALS WHEREIN FRICTIONAL HEAT IS REMOVED FROM THE WORK AND TOOL UTILIZING THE LATENT HEAT OF VAPORIZATION CHARACTERISTIC OF A VOLATILE COOLANT APPLIED TO THE AREA OF CONTACT BETWEEN THE WORK AND TOOL.
Inventors
- 👤 Frederick A Beake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:21
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/10; B23Q11/1076; B23Q11/1038; B23Q11/1061; Y; Y10; Y10T; Y10T407/00; Y10T407/14; Y10T408/00; Y10T408/44; Y10T408/46; Y10T82/00; Y10T82/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |