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Patent US2809488A successfully refreshed from Google Patents.
US2809488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power lawn mower and pulverizer
Assignee: Individual
•
Filing: 1953-11-02
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Granted: 1957-10-15
•
Expires: 1973-11-02
Abstract
No abstract record available.
Inventors
- 👤 Sewell Isola
- 👤 Holt Marjorie Lucille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:58
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/001; A01D34/005; A01D2101/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2675662A
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US2245821A
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US2502696A
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US2564586A
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US2697322A
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US2649678A
Cited
US2687607A
Cited
US2641100A
Cited
US2701942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |