US2721435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power lawn mower
Assignee: Individual
•
Filing: 1953-04-17
•
Granted: 1955-10-25
•
Expires: 1973-04-17
Abstract
No abstract record available.
Inventors
- 👤 Daniel B Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:13
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/02; A01D2101/00; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20256; Y10T74/20268; Y10T74/2028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1610498A
Cited
US2212665A
Cited
US2269858A
Cited
US2280124A
Cited
US2339677A
Cited
GB614353A
Cited
US2523166A
Cited
US2569269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |