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Patent US3214360A successfully refreshed from Google Patents.
US3214360A
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US
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Electrolytic cavity sinking apparatus
Assignee: Anocut Engineering Co
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Filing: 1960-06-21
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Granted: 1965-10-26
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Expires: 1980-06-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Bender
- 👤 Lynn A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:55
CPC Classifications
B; B23; B23H; B23H3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB335003A
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US2059236A
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US2798846A
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US2848410A
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US2958636A
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US2909641A
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US3058895A
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US3002907A
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US3019178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |