US3247656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade for rotary mowers
Assignee: Individual
•
Filing: 1964-01-23
•
Granted: 1966-04-26
•
Expires: 1984-01-23
Abstract
No abstract record available.
Inventors
- 👤 Phelps William Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:20
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/73; A01D34/736
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2167222A
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US2484511A
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US2654986A
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US2669084A
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US2697323A
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US2751737A
Cited
US2815631A
Cited
US2998689A
Cited
US3053033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |