Patent US2620606A successfully refreshed from Google Patents.
US2620606A
Expired / Lapsed
US
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Portable jointer knife grinder
Assignee: Individual
•
Filing: 1951-01-11
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Granted: 1952-12-09
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Expires: 1971-01-11
Abstract
No abstract record available.
Inventors
- 👤 Edwin A Dvorak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:58
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/36; B24B3/363
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1193295A
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US831541A
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US900284A
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US990373A
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US1071580A
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US1187807A
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US1213703A
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US1769870A
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US2417373A
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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) | 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 |