Patent US2422871A successfully refreshed from Google Patents.
US2422871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain saw setting, jointing, and filing device
Assignee: Individual
•
Filing: 1944-06-01
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Granted: 1947-06-24
•
Expires: 1964-06-01
Abstract
No abstract record available.
Inventors
- 👤 Ryce H Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:34
CPC Classifications
B; B23; B23D; B23D63/00; B23D63/08; B23D63/16; B23D63/162; B23D63/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US594000A
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US604574A
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US818195A
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US695135A
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US789560A
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US887694A
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US1088941A
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US1132379A
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US1199918A
Cited
US1770324A
Cited
US1834237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-23 | 1950-12-23 | 1951-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-23 | 1954-12-23 | 1955-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-23 | 1958-12-23 | 1959-06-24 | $7700.00 | Window Closed / Lapsed |