Patent US2931157A successfully refreshed from Google Patents.
US2931157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power driven manually guided lawn mower
Assignee: Individual
•
Filing: 1957-06-14
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Granted: 1960-04-05
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Expires: 1977-06-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Smith
- 👤 Hart Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:38
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/06; A01D43/077; A01D2101/00; A01D34/00; A01D34/01; A01D34/412; A01D34/63
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2725702A
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US2766573A
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US2789408A
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US2777270A
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US2779146A
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US2783604A
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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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |