US2441901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mill
Assignee: FLSmidth and Co AS
•
Filing: 1946-02-09
•
Granted: 1948-05-18
•
Expires: 1966-02-09
Abstract
No abstract record available.
Inventors
- 👤 Louis S Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:39
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/18; B02C17/181; B02C17/24; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19628; Y10T74/19633; Y10T74/19642; Y10T74/19679
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-18 | 1951-11-17 | 1952-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-18 | 1955-11-17 | 1956-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-18 | 1959-11-17 | 1960-05-18 | $7700.00 | Window Closed / Lapsed |