US2150189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill chuck for mine drilling machines
Assignee: Individual
•
Filing: 1938-01-17
•
Granted: 1939-03-14
•
Expires: 1958-01-17
Abstract
No abstract record available.
Inventors
- 👤 Ronneberg Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:53
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/08; B25D17/084; B25D17/088; B23; B23B; B23B2251/00; B23B2251/24; B23B2251/247; B25D2217/00; B25D2217/003; B25D2217/0034; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17821
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) | 1942-03-13 | 1942-09-12 | 1943-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-03-13 | 1946-09-12 | 1947-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-03-13 | 1950-09-12 | 1951-03-14 | $7700.00 | Window Closed / Lapsed |