Patent US2275793A successfully refreshed from Google Patents.
US2275793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Descaling, cleaning, and coating machine
Assignee: Northwestern Steel and Wire Co
•
Filing: 1940-07-17
•
Granted: 1942-03-10
•
Expires: 1960-07-17
Abstract
No abstract record available.
Inventors
- 👤 Peter M Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:40
CPC Classifications
C; C23; C23G; C23G3/00; C23G3/02; C23G3/021; C23G3/022; Y; Y10; Y10S; Y10S118/00; Y10S118/19
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) | 1945-03-09 | 1945-09-08 | 1946-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-03-09 | 1949-09-08 | 1950-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-03-09 | 1953-09-08 | 1954-03-10 | $7700.00 | Window Closed / Lapsed |