US2652461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductor roll for apparatus for electrolytically treating strip
Assignee: National Steel Corp
•
Filing: 1949-08-04
•
Granted: 1953-09-15
•
Expires: 1969-08-04
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:39
CPC Classifications
C; C25; C25D; C25D7/00; C25D7/06; C25D7/0614; C25D7/0657
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1064764A
Cited
US2217015A
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US2266347A
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US2446548A
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US2267209A
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US2439858A
Cited
US2526312A
Cited
US2513515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |