US2823641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for fluxing and coating metal strip
Assignee: Wheeling Steel Corp
•
Filing: 1954-02-24
•
Granted: 1958-02-18
•
Expires: 1974-02-24
Abstract
No abstract record available.
Inventors
- 👤 Nelson E Cook
- 👤 Samuel L Norteman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:56
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/34; C23C2/36; C23C2/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US623389A
Cited
US226459A
Cited
US1055404A
Cited
US1755559A
Cited
US1898739A
Cited
US2034348A
Cited
US2159297A
Cited
US2095718A
Cited
US2165089A
Cited
US2213644A
Cited
US2223355A
Cited
US2315150A
Cited
US2566796A
Cited
US2642030A
Cited
US2700624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |