Patent US2620469A successfully refreshed from Google Patents.
Patent US2843070A successfully refreshed from Google Patents.
US2843070A
Expired / Lapsed
US
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Machines for shaping seamless metal cans and the like
Assignee: WILLISTON SEAMLESS CAN Co
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Filing: 1953-03-24
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Granted: 1958-07-15
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Expires: 1973-03-24
Abstract
No abstract record available.
Inventors
- 👤 Howard L Berkley
- 👤 Count Finley E Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:24
CPC Classifications
B; B21; B21D; B21D24/00; B23; B23D; B23D31/00; B23D31/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |