US2289912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Milling machine
Assignee: Brown and Sharpe Manufacturing Co
•
Filing: 1938-02-23
•
Granted: 1942-07-14
•
Expires: 1958-02-23
Abstract
No abstract record available.
Inventors
- 👤 George B Hirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:15
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23C; B23C1/00; B23C1/12; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/48; B23Q1/4852; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30784; Y10T409/307952; Y10T409/308232; Y10T409/308456; Y10T409/308512
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1945-07-13 | 1946-01-12 | 1946-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-07-13 | 1950-01-12 | 1950-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-07-13 | 1954-01-12 | 1954-07-14 | $7700.00 | Window Closed / Lapsed |