US2327404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Milling machine
Assignee: VAN NORMAN MACHINE TOOL CO
•
Filing: 1941-07-15
•
Granted: 1943-08-24
•
Expires: 1961-07-15
Abstract
No abstract record available.
Inventors
- 👤 Frank W Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:44
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q2705/00; B23Q2705/02; B23Q2705/026; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T409/306776
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) | 1946-08-23 | 1947-02-22 | 1947-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-23 | 1951-02-22 | 1951-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-23 | 1955-02-22 | 1955-08-24 | $7700.00 | Window Closed / Lapsed |