Patent US1957667A successfully refreshed from Google Patents.
US1957667A
Expired / Lapsed
US
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Chip-flow lathe for hard-metal and diamond tools
Assignee: Individual
•
Filing: 1932-06-14
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Granted: 1934-05-08
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Expires: 1952-06-14
Abstract
No abstract record available.
Inventors
- 👤 Ritter Malte
- 👤 Mobius Walter
- 👤 Rothenberg Otto
- 👤 Block Friedrich Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:15
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/01; B23Q11/00; B23Q11/0042; B23Q11/08; B23Q11/10; Y; Y10; Y10S; Y10S29/00; Y10S29/052; Y10S29/079; Y10S29/101; Y10S82/00; Y10S82/901; Y10T; Y10T82/00; Y10T82/25; Y10T82/2564; Y10T82/2566; Y10T83/00; Y10T83/222
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) | 1937-05-07 | 1937-11-06 | 1938-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-05-07 | 1941-11-06 | 1942-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-05-07 | 1945-11-06 | 1946-05-08 | $7700.00 | Window Closed / Lapsed |