US2049400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and machine for metalworking
Assignee: Ingersoll Milling Machine Co
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Filing: 1935-11-25
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Granted: 1936-07-28
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Expires: 1955-11-25
Abstract
No abstract record available.
Inventors
- 👤 Marion L Strawn
- 👤 Rougemont Rene Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:33
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/14; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5182; Y10T409/00; Y10T409/30; Y10T409/3042; Y10T409/30868; Y10T409/309016; Y10T409/309072
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) | 1939-07-28 | 1940-01-27 | 1940-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-07-28 | 1944-01-27 | 1944-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-07-28 | 1948-01-27 | 1948-07-28 | $7700.00 | Window Closed / Lapsed |