US2417145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling and separating sheetlike material
Assignee: National Steel Corp
•
Filing: 1944-08-03
•
Granted: 1947-03-11
•
Expires: 1964-08-03
Abstract
No abstract record available.
Inventors
- 👤 Ward William Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:59
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/16; B23Q2707/00; B23Q2707/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US629140A
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US1302466A
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US1812201A
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US1957260A
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US1911397A
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US2168419A
Cited
US2176307A
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US2315003A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-10 | 1950-09-09 | 1951-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-10 | 1954-09-09 | 1955-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-10 | 1958-09-09 | 1959-03-11 | $7700.00 | Window Closed / Lapsed |