Patent US3400523A successfully refreshed from Google Patents.
US3400523A
Expired / Lapsed
US
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Lawn mowers
Assignee: Flymo SA
•
Filing: 1965-06-11
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Granted: 1968-09-10
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Expires: 1985-06-11
Abstract
No abstract record available.
Inventors
- 👤 Klingofstrom Svante
- 👤 Svensson Ernst Sture Lennart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:36
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/06; A01D43/077; A01D2101/00; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D43/0775; Y; Y10; Y10S; Y10S56/00; Y10S56/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3118267A
Cited
US2547328A
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US2743567A
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US3110996A
Cited
US3188787A
Cited
US3178872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |