US2511418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear finishing machine
Assignee: Nachi Machining Technology Co
•
Filing: 1944-08-16
•
Granted: 1950-06-13
•
Expires: 1964-08-16
Abstract
No abstract record available.
Inventors
- 👤 William A Schulte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:54
CPC Classifications
B; B23; B23F; B23F19/00; B23F19/06; B23F23/00; B23F23/12; B23F23/1218; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/109063; Y10T82/00; Y10T82/25; Y10T82/2572
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US354740A
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DE339718C
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US1580081A
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US1551715A
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US2270421A
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US2026784A
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US2335215A
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US1928373A
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US2195820A
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US2304148A
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US2340978A
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US2433468A
Cited
US2434661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |