Patent US2474877A successfully refreshed from Google Patents.
US2474877A
Expired / Lapsed
US
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Attachment for milling machines
Assignee: Individual
•
Filing: 1945-08-03
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Granted: 1949-07-05
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Expires: 1965-08-03
Abstract
No abstract record available.
Inventors
- 👤 Howard A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:29
CPC Classifications
B; B23; B23D; B23D11/00; Y; Y10; Y10T; Y10T409/00; Y10T409/50; Y10T409/504756; Y10T409/506232; Y10T409/507544
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US360530A
Cited
US660200A
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US1366005A
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US1367680A
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US1412915A
Cited
FR588397A
Cited
FR601038A
Cited
US1661509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |