Patent US3452524A successfully refreshed from Google Patents.
US3452524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lawn mower with yieldably mounted blade
Assignee: HENRY M GUETTERMAN
•
Filing: 1966-04-25
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Granted: 1969-07-01
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Expires: 1986-04-25
Abstract
No abstract record available.
Inventors
- 👤 Henry M Guetterman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:10
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/73; A01D2101/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2697323A
Cited
GB872372A
Cited
US3013372A
Cited
US3086346A
Cited
US3183655A
Cited
US3184907A
Cited
US3321026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |