Patent US1492840A successfully refreshed from Google Patents.
Patent US3514935A successfully refreshed from Google Patents.
US3514935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting attachment for mower blades
Assignee: Individual
•
Filing: 1966-09-13
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Granted: 1970-06-02
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Expires: 1986-09-13
Abstract
No abstract record available.
Inventors
- 👤 Charles A Bonsor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:04
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/73
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2924058A
Cited
US2592755A
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US2576884A
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US2697322A
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US2836021A
Cited
US2932147A
Cited
US3140575A
Cited
US3243944A
Cited
US3327460A
Cited
US3321894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |