US2442485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of descaling and coating hot-rolled ferrous metal
Assignee: Individual
•
Filing: 1944-06-24
•
Granted: 1948-06-01
•
Expires: 1964-06-24
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:06
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/06; C23C14/14; C23C14/16; B; B21; B21B; B21B45/00; C23C14/02; C23C14/028; B21B1/00; B21B1/38; B21B2001/383; Y; Y10; Y10T; Y10T29/00; Y10T29/45; Y10T29/4517; Y10T29/49; Y10T29/4981; Y10T29/49812; Y10T428/00; Y10T428/12; Y10T428/12472; Y10T428/12493; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12799; Y10T428/12861; Y10T428/12951
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US148795A
Cited
US2059460A
Cited
US2197622A
Cited
US2294750A
Cited
US2314902A
Cited
US2275793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |