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Patent US2857068A successfully refreshed from Google Patents.
US2857068A
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Assignee: Individual
•
Filing: 1953-12-01
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Granted: 1958-10-21
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Expires: 1973-12-01
Abstract
No abstract record available.
Inventors
- 👤 Edward O Kraepelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:37
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/24; B65D51/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1492422A
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US1683823A
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US1634806A
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US1834085A
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US1985615A
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US2091212A
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US2222042A
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US2440149A
Cited
US2622607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |