Patent US2089814A successfully refreshed from Google Patents.
US2089814A
Expired / Lapsed
US
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Machine tool
Assignee: Ingersoll Milling Machine Co
•
Filing: 1935-03-04
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Granted: 1937-08-10
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Expires: 1955-03-04
Abstract
No abstract record available.
Inventors
- 👤 William F Ridgway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:19
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/0009; B23C; B23C1/00; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5115; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T409/304648; Y10T409/304704; Y10T409/305152; Y10T409/30784; Y10T409/307952; Y10T409/308176
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) | 1940-08-09 | 1941-02-08 | 1941-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-08-09 | 1945-02-08 | 1945-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-08-09 | 1949-02-08 | 1949-08-10 | $7700.00 | Window Closed / Lapsed |