Patent US2224173A successfully refreshed from Google Patents.
US2224173A
Expired / Lapsed
US
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Inserted blade cutter
Assignee: Ingersoll Milling Machine Co
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Filing: 1935-02-11
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Granted: 1940-12-10
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Expires: 1955-02-11
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Weddell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:49
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/16; B23C5/20; B23C5/22; B23C5/24; B23C5/2468; B23C5/2265; B23C5/2269; B23C5/2273; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1908; Y10T407/1912; Y10T407/1914; Y10T407/1916; Y10T407/192; Y10T407/1922; Y10T407/22; Y10T407/2222; Y10T407/2252; Y10T407/2256; Y10T407/2258
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) | 1943-12-10 | 1944-06-10 | 1944-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-10 | 1948-06-10 | 1948-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-10 | 1952-06-10 | 1952-12-10 | $7700.00 | Window Closed / Lapsed |