Patent US1468455A successfully refreshed from Google Patents.
US2585271A
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Gear finishing machine
Assignee: Nachi Machining Technology Co
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Filing: 1946-04-15
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Granted: 1952-02-12
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Expires: 1966-04-15
Abstract
No abstract record available.
Inventors
- 👤 Walter S Praeg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:57
CPC Classifications
B; B21; B21H; B21H5/00; B21H5/02; B21H5/022; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/5128; Y10T409/00; Y10T409/10; Y10T409/100795; Y10T409/101431; Y10T409/10477
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1790560A
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US1829263A
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US1928770A
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US2107543A
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US2227491A
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US2150313A
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US2343407A
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US2394757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |