US2633880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heavy duty tree cutter
Assignee: Individual
•
Filing: 1951-06-22
•
Granted: 1953-04-07
•
Expires: 1971-06-22
Abstract
No abstract record available.
Inventors
- 👤 Mattson William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:58
CPC Classifications
B; B27; B27B; B27B23/00; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9319; Y10T83/9346; Y10T83/935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US452391A
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US927612A
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US1171603A
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GB273866A
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US1840912A
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US2158541A
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US2295458A
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US2309223A
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US2336124A
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US2426694A
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US2573573A
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US2512666A
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US2577906A
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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) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |