Patent US2142736A successfully refreshed from Google Patents.
US2142736A
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US
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Machine for metalworking
Assignee: Ingersoll Milling Machine Co
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Filing: 1937-06-18
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Granted: 1939-01-03
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Expires: 1957-06-18
Abstract
No abstract record available.
Inventors
- 👤 Rougemont Rene Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:33
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/14; B23C1/00; B23C1/02; B23C1/025; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/3042; Y10T409/304536; Y10T409/304648; Y10T409/30476; Y10T409/305152
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) | 1942-01-02 | 1942-07-04 | 1943-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-01-02 | 1946-07-04 | 1947-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-01-02 | 1950-07-04 | 1951-01-03 | $7700.00 | Window Closed / Lapsed |