US1902179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool
Assignee: Ingersoll Milling Machine Co
•
Filing: 1931-05-15
•
Granted: 1933-03-21
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Expires: 1951-05-15
Abstract
No abstract record available.
Inventors
- 👤 Oberhoffken Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:19
CPC Classifications
B; B23; B23B; B23B39/00; B23B39/16; B23B39/24; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5105; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/31; Y10T408/65; Y10T408/675; Y10T408/6771; Y10T408/6774; Y10T82/00; Y10T82/25; Y10T82/2511
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) | 1936-03-20 | 1936-09-19 | 1937-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-03-20 | 1940-09-19 | 1941-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-03-20 | 1944-09-19 | 1945-03-21 | $7700.00 | Window Closed / Lapsed |