Patent US2420547A successfully refreshed from Google Patents.
US2420547A
Expired / Lapsed
US
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Profile milling machine
Assignee: Jones and Lamson Machine Co
•
Filing: 1944-04-22
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Granted: 1947-05-13
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Expires: 1964-04-22
Abstract
No abstract record available.
Inventors
- 👤 John E Lovely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:51
CPC Classifications
B; B23; B23C; B23C3/00; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/302688; Y10T409/302744; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US468283A
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US1322005A
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US1017879A
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GB191222895A
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US1840231A
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US1783755A
Cited
US1865527A
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US2078463A
Cited
US2130627A
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US2109386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-12 | 1950-11-11 | 1951-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-12 | 1954-11-11 | 1955-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-12 | 1958-11-11 | 1959-05-13 | $7700.00 | Window Closed / Lapsed |