Patent US2810573A successfully refreshed from Google Patents.
US2810573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal stock feeder mechanism
Assignee: Individual
•
Filing: 1953-08-24
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Granted: 1957-10-22
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Expires: 1973-08-24
Abstract
No abstract record available.
Inventors
- 👤 Nadel Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:11
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/10; B21D43/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2123997A
Cited
US2250530A
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US2188473A
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US2278921A
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US2388423A
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US2467740A
Cited
US2696380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |