US2522331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor attachment for lawn mowers
Assignee: Individual
•
Filing: 1947-02-04
•
Granted: 1950-09-12
•
Expires: 1967-02-04
Abstract
No abstract record available.
Inventors
- 👤 Lewis H Yocum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:38
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/46; A01D34/47; A01D34/475; A01D2101/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1966972A
Cited
US2070288A
Cited
US2066174A
Cited
US2082600A
Cited
US2260344A
Cited
US2429378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |