Patent US2490894A successfully refreshed from Google Patents.
US2490894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor mower
Assignee: Sears Roebuck and Co
•
Filing: 1945-01-19
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Granted: 1949-12-13
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Expires: 1965-01-19
Abstract
No abstract record available.
Inventors
- 👤 William L Zink
- 👤 Byron T Aasland
- 👤 Vernon O Hauswirth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:14
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/02; A01D34/03; A01D34/07
Claims Analysis
Total Claims: 0
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US2275259A
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US2314216A
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US2305959A
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US2376406A
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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) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |