US3524307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating front guard for rotary lawnmowers
Assignee: Lawn Boy Inc
•
Filing: 1967-02-28
•
Granted: 1970-08-18
•
Expires: 1987-02-28
Abstract
No abstract record available.
Inventors
- 👤 Einar S Dahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:46
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/82; A01D34/828; A01D2101/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2242922A
Cited
US2489516A
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US2694894A
Cited
US2982079A
Cited
US2984961A
Cited
US3205643A
Cited
US3191369A
Cited
US3195297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |