US2661948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet pickup and feeder
Assignee: United States Steel Corp
•
Filing: 1950-04-19
•
Granted: 1953-12-08
•
Expires: 1970-04-19
Abstract
No abstract record available.
Inventors
- 👤 William G Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:12
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/20; B21D43/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1442718A
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US1457830A
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US1870336A
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US1965745A
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US2049850A
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US2197817A
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US2312357A
Cited
US2486733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |