US2432567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick-detachable head, guard, and helper's handle for chain saws
Assignee: Individual
•
Filing: 1944-10-09
•
Granted: 1947-12-16
•
Expires: 1964-10-09
Abstract
No abstract record available.
Inventors
- 👤 Mark L Forrest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:50
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/02; B27B17/0008; B27B17/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US807731A
Cited
US1016664A
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US1642856A
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US1717547A
Cited
US1786641A
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US1903571A
Cited
GB402765A
Cited
US2326854A
Cited
GB539956A
Cited
US2316997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-15 | 1951-06-16 | 1951-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-15 | 1955-06-16 | 1955-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-15 | 1959-06-16 | 1959-12-16 | $7700.00 | Window Closed / Lapsed |