US2864137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for producing metal strip
Assignee: Individual
•
Filing: 1952-10-25
•
Granted: 1958-12-16
•
Expires: 1972-10-25
Abstract
No abstract record available.
Inventors
- 👤 Helen E Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:22
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/02; B22; B22D; B22D7/00; B22D7/005; C; C23; C23C; C23C4/00; C23C4/12; C23C4/14; C23C4/18; C23C4/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1444953A
Cited
US777560A
Cited
US1179762A
Cited
US1879336A
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US2074812A
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US2129703A
Cited
US2092150A
Cited
US2277375A
Cited
GB483517A
Cited
US2308395A
Cited
US2303139A
Cited
GB568641A
Cited
US2496235A
Cited
US2569150A
Cited
US2568525A
Cited
US2648567A
Cited
US2598344A
Cited
US2639490A
Cited
US2673121A
Cited
US2604419A
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US2640860A
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US2701901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |