Patent US3522679A successfully refreshed from Google Patents.
Patent US2836029A successfully refreshed from Google Patents.
US2836029A
Expired / Lapsed
US
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Lawn mower cutting blade
Assignee: Individual
•
Filing: 1956-10-25
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Granted: 1958-05-27
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Expires: 1976-10-25
Abstract
No abstract record available.
Inventors
- 👤 Johnson Alexander John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:47
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D2101/00; Y; Y10; Y10S; Y10S56/00; Y10S56/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1622611A
Cited
US2071872A
Cited
US2721438A
Cited
US2669084A
Cited
US2724229A
Cited
US2737003A
Cited
US2779146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |