US2187744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for face milling
Assignee: Ingersoll Milling Machine Co
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Filing: 1937-04-09
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Granted: 1940-01-23
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Expires: 1957-04-09
Abstract
No abstract record available.
Inventors
- 👤 Charles E Kraus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:33
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/16; B23C5/20; B23C5/22; B23C5/2265; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1934; Y10T407/1938; Y10T407/1952; Y10T407/1962; Y10T409/00; Y10T409/30; Y10T409/309184
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) | 1943-01-22 | 1943-07-24 | 1944-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-22 | 1947-07-24 | 1948-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-22 | 1951-07-24 | 1952-01-23 | $7700.00 | Window Closed / Lapsed |