Patent US2621041A successfully refreshed from Google Patents.
US2621041A
Expired / Lapsed
US
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Feeding mechanism
Assignee: Individual
•
Filing: 1950-05-22
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Granted: 1952-12-09
•
Expires: 1970-05-22
Abstract
No abstract record available.
Inventors
- 👤 Hubert E Dickerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:33
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)
US763195A
Cited
US900335A
Cited
US1124577A
Cited
US1127843A
Cited
US1960537A
Cited
US2188473A
Cited
US2342049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |