US2660318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for conveying magnetizable sheets
Assignee: United States Steel Corp
•
Filing: 1950-03-10
•
Granted: 1953-11-24
•
Expires: 1970-03-10
Abstract
No abstract record available.
Inventors
- 👤 Coleman H Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:45
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/68; B65G47/71; B21; B21B; B21B39/00; B21B39/002; B65G57/00; B65G57/02; B65G57/11; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1369516A
Cited
US2008200A
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US2207434A
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US2176784A
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US2303526A
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US2328859A
Cited
US2278518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |